New enemies

Name Description Locations Spoils
 
Electrogoomba
Goomba-like octopus creatures. They sidestep back and forth along a set path and keep their eyes locked onto Mario when he is nearby. If in close proximity, they attempt to strike him with the hair-like protrusion on their heads. Electrogoombas can be defeated with a spin or a stomp. Good Egg Galaxy, Battlerock Galaxy, Bowser Jr.'s Airship Armada, Toy Time Galaxy Template:Chart icon×1
Template:Chart icon×3
 
Octoguy
Red Electrogoombas that shuffle backward from Mario when approached. They periodically stop to spit a rock at him and can be defeated with a spin or jump. Honeyhive Galaxy, Buoy Base Galaxy, Bowser Jr.'s Airship Armada, Gold Leaf Galaxy, Deep Dark Galaxy Template:Chart icon×1
Template:Chart icon×3
 
Rocto
Stationary Octoroks that sit in barrels. They shoot coconutsB and flaming rocks at Mario. The coconuts can be deflected back at them if spun against. Roctos are always found in pairs. Good Egg Galaxy, Space Junk Galaxy, Bowser Jr.'s Lava Reactor, Dreadnought Galaxy None
 
Slurple
Slurples latch onto Mario and gradually deplete his life meter. Spinning defeats them. Good Egg Galaxy, Honeyhive Galaxy, Gusty Garden Galaxy, Gold Leaf Galaxy, Sea Slide Galaxy Template:Chart icon×1
 
Prickly plant
Plants with needle-like flowers that damage Mario on contact. Destroying them without a power-up usually requires striking them with another object, such as a coconutB or rubbery bulb. Good Egg Galaxy, Gusty Garden Galaxy, Dusty Dune Galaxy, Toy Time Galaxy, Gateway Galaxy, Bowser's Galaxy Reactor Template:Chart icon×1
Template:Chart icon×3
Template:Chart icon×1
 
Giant prickly plant
Like normal-sized prickly plants, giant prickly plants damage Mario on contact and can only be destroyed via indirect means. Airborne ones appear in Gusty Garden Galaxy. Good Egg Galaxy, Gusty Garden Galaxy, Dusty Dune Galaxy Template:Chart icon×7
Template:Chart icon×1
 
Spiny Piranha Plant
Giant Piranha Plants that slam their heads into the ground. Spinning one stuns it while jumping on its head defeats it. Good Egg Galaxy, Beach Bowl Galaxy, Gusty Garden Galaxy Template:Chart icon×7
Template:Chart icon×1
 
Tracks
Sandal-wearing creatures. They are invisible while moving, but materialize when they stand still. Tracks are harmless, but they can be defeated to recover a large number of Star Bits. Their movement can be tracked by following their footsteps. Good Egg Galaxy, Gusty Garden Galaxy, Sea Slide Galaxy, Deep Dark Galaxy, Gateway Galaxy Template:Chart icon×20
 
Mandibug
Stink bug-like enemies. They charge towards Mario after making visual contact, snapping their jaws. They can be defeated with a Ground Pound. A Mandibug trembles if Mario stands on its back but eventually shake him off. Honeyhive Galaxy, Bowser Jr.'s Airship Armada, Honeyclimb Galaxy, Gold Leaf Galaxy Template:Chart icon×3
 
Flipbug
When Mario is in close proximity, Flipbugs try to fly away before tiring out and falling to the ground, flailing their legs. If spotted in his Bee form, they pursue him. Honeyhive Galaxy, Gusty Garden Galaxy, Gold Leaf Galaxy Template:Chart icon×1
Template:Chart icon×3
 
Water Shooter
Mounted nozzles that shoot large drops of water over great distances. A drop traps Mario if he is within its trajectory and carries him with it. He is freed if he spins. Honeyhive Galaxy, Buoy Base Galaxy, Deep Dark Galaxy, Sand Spiral Galaxy Template:Chart icon
 
Fire Shooter
Mounted flamethrowers that shoot streams of fire. The flames recede in set intervals that can be timed. Bowser's Star Reactor, Toy Time Galaxy, Deep Dark Galaxy, Bubble Blast Galaxy Template:Chart icon
 
Spiky Topman
Spinning top enemies. Spiky Topmen do not directly harm Mario, but they can push him into hazards or off of a platform. The spike on their heads protects them from being stomped on and damage Mario on contact. Spiky Topmen can only be defeated if knocked into an electric rail or off the side of a platform. Battlerock Galaxy, Dreadnought Galaxy Template:Chart icon×1
 
Spring Topman
Green Topmen who cause Mario to spin out of control if they collide with him. Jumping on one's head leaves it stunned, allowing Mario to jump on it again to reach great heights. Some Spring Topmen can produce Topminis. Buoy Base Galaxy, Dreadnought Galaxy None
 
Topmini
Tiny Topmen that are defeated when spun into. Topminis are incapable of damaging Mario and can only push him around. There are small portals that continuously produce Topminis. They otherwise are produced by Spring Topmen and Sentry Garages. Buoy Base Galaxy, Dreadnought Galaxy Template:Chart icon×1
 
Sentry Garage
A large Spring Vault that releases four Topminis from its sides. After jumping on its head, it can be used as a spring to reach higher areas. Buoy Base Galaxy None
 
Spring Vault
Spring-like Pulse Beams. They can be used as springs after jumping on their head. Flipswitch Galaxy, Battlerock Galaxy, Dreadnought Galaxy None
 
Ball Beamer
Stationary enemies that discharge wide-range shockwaves on the surface of spherical planets. The shockwaves damage Mario on contact and are discharged in consistent, three-part intervals that can be timed. Most Ball Beamers lack interactive components, but there is one in Buoy Base Galaxy with a gold screw on its top. Spinning the screw disengages the Ball Beamer and opens up the metal planet it is fastened to. Buoy Base Galaxy, Deep Dark Galaxy Template:Chart icon
 
Pulse Beam
Spiked domes that discharge shockwaves. Attempting to jump on a Pulse Beam damages Mario. Toy Time Galaxy, Dreadnought Galaxy Template:Chart icon
 
Sentry Beam
Stationary robots that fire lasers at Mario when he is close. Sentry Beams are completely invincible, although standing on top of one temporarily prevents it from firing. Battlerock Galaxy, Bowser Jr.'s Airship Armada, Toy Time Galaxy Template:Chart icon
 
Eye Beamer
Mechanical eyes that are suspended in the air. They shoot electric beams that damage Mario on contact. Some Eye Beamers move while others are stationary. The back of Eye Beamers is undamaging and flat: they can be stood on and used as platforms. Dusty Dune Galaxy, Dreadnought Galaxy Template:Chart icon
 
Goombeetle
Helmet-wearing Goombas that cannot be stomped. Spinning one flips it upside down, exposing its unprotected underside. Bowser Jr.'s Robot Reactor, Battlerock Galaxy, Buoy Base Galaxy, Bowser's Dark Matter Plant, Dreadnought Galaxy Template:Chart icon×1
 
Pumpkinhead Goomba
Slow-moving Goombas with Jack-o'-lanterns covering their heads. They periodically leave small blue flames that damage Mario on contact. Pumpkinhead Goombas can be defeated in one hit with a Ground Pound. Spinning them destroys the pumpkins and turns them into regular Goombas. Ghostly Galaxy Template:Chart icon×1
 
Spoing
Stationary spiders that hop up and down. Spoings are stunned when shot by a Star Bit. Jumping on one defeats it. They laugh if they successfully strike Mario. Space Junk Galaxy, Ghostly Galaxy Template:Chart icon×1
Template:Chart icon×3
 
Sprangler
Spiders hanging from silk. They sway back and forth in an attempt to strike Mario. Spinning into Spranglers leaves them stunned for Mario to defeat. They otherwise can be jumped on. Ghostly Galaxy, Bowser Jr.'s Airship Armada, Sea Slide Galaxy Template:Chart icon×1
Template:Chart icon×3
 
Space Mine
Midair Mikey Mines. They are usually fixed in one spot, but some move along purple-colored streaks of light. Making contact with a Space Mine makes it explode, causing damage. They are destroyed when shot by a Star Bit. Battlerock Galaxy, Bubble Breeze Galaxy, Ghostly Galaxy, Bowser Jr.'s Airship Armada, Sling Pod Galaxy, Dreadnought Galaxy, Sand Spiral Galaxy, Bubble Blast Galaxy None
 
Mikey Mine
Naval mines that bob up and down on chains. Mikey Mines keep their eyes shut unless Mario is in close proximity. They regenerate after detonating. Deep Dark Galaxy None
 
Monty
Bandana-wearing moles that sit in hatches and throw wrenches at Mario. They close and hide in the hatch if he approaches them. Montys can be stunned by Ground Pounding the earth near them or by dazing them with a Star Bit, leaving them vulnerable to attack. Battlerock Galaxy, Gusty Garden Galaxy, Dreadnought Galaxy Template:Chart icon×1
Template:Chart icon×3
 
Undergrunt
Burrowing Montys. They leave trails of disturbed dirt as they burrow through the ground. Undergrunts can be defeated by ground-pounding nearby earth. This forces them to the surface, leaving them dazed and vulnerable to being spun. Their spiked helmets damage Mario if he tries to jump on them. The helmets protrude from the ground as the Undergrunts burrow, allowing the player to track their movements. Gusty Garden Galaxy, Gold Leaf Galaxy Template:Chart icon×3
 
Meteor
Fiery space rocks. Bowser shoots them out of his mouth to destroy the big staircase in Bowser's Star Reactor, and Bowser Jr. fires them from the cannons in his airship in Bowser's Galaxy Reactor. They otherwise appear raining from the sky in lava-themed galaxies. Bowser's Star Reactor, Honeyclimb Galaxy, Bowser Jr.'s Lava Reactor, Melty Molten Galaxy, Gateway Galaxy, Bowser's Galaxy Reactor None
 
Bat
Bats roost in caves and swoop down to attack Mario. They pause and laugh if they land a hit. They can be defeated with a spin or stomp. Beach Bowl Galaxy, Ghostly Galaxy, Toy Time Galaxy Template:Chart icon×1
Template:Chart icon×3
 
Ice bat
White bats. Making direct contact freezes Mario. They can only be damaged by fire. Freezeflame Galaxy Template:Chart icon×3
 
Gringill
Big conger eel enemies. Gringills lunge at Mario if he approaches the mouth of their caves. They can only be defeated by projectile shells. In some instances, they can be found swimming in open water. Beach Bowl Galaxy, Sea Slide Galaxy, Drip Drop Galaxy, Deep Dark Galaxy, Bigmouth Galaxy Template:Chart icon×7
 
Giant Gringill
Large Gringills restricted to underwater caves. They snap towards Mario if he approaches the mouth of their caves. They move more slowly than normal-sized Gringills. Beach Bowl Galaxy, Sea Slide Galaxy, Deep Dark Galaxy Template:Chart icon×1
 
Clampy
A giant clam that opens and closes its mouth. Star Chips or coins can be found inside it. Snapping shut with Mario inside damages him. Beach Bowl Galaxy Template:Chart icon
 
Bomb Boo
Explosive Boos. Unlike normal Boos, Bomb Boos do not cower when Mario looks at them and move directly towards him on sight. Spinning near a Bomb Boo causes Mario to grab onto its tongue and swing it like a lasso. It detonates if it is swung into an object or wall. If Mario does not release the Bomb Boo, it is pulled in closer and damages him. Bomb Boos are conjured by Bouldergeist and can be used to destroy the boss's stone armor. Ghostly Galaxy None
 
Golden Chomp
A rolling Chomp made of gold. It can only be destroyed by Mario if he collides with it in his Rainbow form. Gusty Garden Galaxy Template:Chart icon×1
 
Mini Chomp
Little Chomps that roll out of doghouses. Mini Chomps cannot be damaged directly: they are only destroyed once all nearby Flipswitch Panels are activated. Dreadnought Galaxy Template:Chart icon×3
 
Ice Bubble
Floating ice enemies that freeze Mario on contact. Spinning near them neutralizes their icy cloud and forces them to the ground, leaving them vulnerable to being kicked. Neutralized Ice Bubbles propel themselves towards the nearest pool of freezing water to regenerate their cloud. Freezeflame Galaxy, Toy Time Galaxy Template:Chart icon×1
 
Li'l Cinder
Floating fire enemies that burn Mario on contact. Spinning near them extinguishes their flame and leaves them vulnerable to being kicked. Extinguished Li'l Cinders hop towards the nearest pool of lava to reignite. Freezeflame Galaxy, Melty Molten Galaxy Template:Chart icon×1
 
Ground Urchin
Red Urchins found in hot areas. When Mario draws near, they protract their spines and roll towards him. Ground Urchins can only be defeated by fire and lava. There is a box-like stone sculpture in Freezeflame Galaxy that continuously expels these Urchins. Freezeflame Galaxy, Deep Dark Galaxy Template:Chart icon×5
 
Crabber (Blue)
Sidestepping crabs that scuttle away from Mario. Crabbers have hard shells that protect them from jumps and spins head-on, but their fleshy rears are exposed and can be struck. Blue Crabbers bury themselves underground in an attempt to escape and resurface shortly after. Dusty Dune Galaxy, Sea Slide Galaxy, Deep Dark Galaxy, Bigmouth Galaxy Template:Chart icon×1
 
Crabber (Red)
Red Crabbers actively pursue Mario but move slowly. Dusty Dune Galaxy, Sea Slide Galaxy, Deep Dark Galaxy, Bigmouth Galaxy Template:Chart icon×3
 
Pokeyplant
A red Pokey. It shimmies away from Mario while attempting to slam its head onto him. The Pokeyplant can be defeated by destroying each of its body segments, or by stomping on its head from above. If reduced to just a head, it attempts to flee. Dusty Dune Galaxy Template:Chart icon×7
 
Cluckboom
Plurp-like enemies that lay explosive eggs. They fly in set paths, fluttering back and forth. Cluckbooms fall to the ground if shot by a Star Bit, leaving them open to attack. Dusty Dune Galaxy Template:Chart icon×1
Template:Chart icon×3
 
Bone Twister
Whirlwinds that move along set paths. They trap Mario when they make contact, but this does not harm him. Mario is propelled high into the air like a bamboo-copter if he spins while trapped inside. Some Bone Twisters carry jagged rocks that damage Mario if he makes contact. Dusty Dune Galaxy Template:Chart icon
 
Bonefin
Undead sharks. They appear during the boss fight with Kingfin, who summons them from a hydrothermal vent as he accumulates damage. They lock-on and launch towards Mario when he comes in close proximity to them. Bonefins can be defeated by leading them to the water's surface or by striking them with a shell. All Bonefins disappear when Kingfin is defeated. Bonefin Galaxy Template:Chart icon×7
 
Jammyfish
Jellyfish that swim in schools along a set path. They damage Mario on contact but do not actively pursue him. Deep Dark Galaxy, Bigmouth Galaxy Template:Chart icon×1
 
Jam-o'-War
Large Jammyfish that idly float in place and electrocute Mario if touched. Jam-o'-Wars are defeated when they are hit by a shell twice. The first strike turns them green. Deep Dark Galaxy, Bigmouth Galaxy Template:Chart icon×1

Returning enemies

Name Description Locations Spoils
 
Goomba
Squat mushroom creatures that chase Mario when he is in their line of sight. Goombas can be defeated with a single jump. Spinning or shooting them with Star Bits causes them to flip over and spin like a top, leaving them vulnerable to being kicked or stomped on. Pumpkinhead Goombas become regular Goombas if spun. Good Egg Galaxy, Space Junk Galaxy, Rolling Green Galaxy, Battlerock Galaxy, Hurry-Scurry Galaxy, Beach Bowl Galaxy, Buoy Base Galaxy, Bowser Jr.'s Airship Armada, Gusty Garden Galaxy, Freezeflame Galaxy, Dusty Dune Galaxy, Bowser's Dark Matter Plant, Gold Leaf Galaxy, Bowser Jr.'s Lava Reactor, Gateway Galaxy, Deep Dark Galaxy, Dreadnought Galaxy, Rolling Gizmo Galaxy Template:Chart icon×1
Template:Chart icon×3
Template:Chart icon×1
 
Grand Goomba
A giant Goomba. It can only be defeated with a spin and a kick. Gateway Galaxy Template:Chart icon×1
 
Micro Goomba
Little Goombas. Like normal-sized Goombas, they charge towards Mario if he is near. They can be defeated with a single spin. Rolling Green Galaxy, Battlerock Galaxy, Freezeflame Galaxy, Dusty Dune Galaxy, Bowser Jr.'s Lava Reactor, Gateway Galaxy, Dreadnought Galaxy, Rolling Gizmo Galaxy Template:Chart icon×1
 
Piranha Plant
Carnivorous plants that try to bite Mario when approached and laugh if they land a hit. Piranha Plants can be defeated with a spin or a stomp, and can be stunned with a fired Star Bit. Sproutle Vines sometimes grow from where a Piranha Plant is defeated. They idly keep their heads raised skyward when unapproached. Good Egg Galaxy, Honeyhive Galaxy, Beach Bowl Galaxy, Gusty Garden Galaxy, Dusty Dune Galaxy, Gold Leaf Galaxy Template:Chart icon×1
Template:Chart icon×3
Template:Chart icon×1
 
Bullet Bill
Missiles fired from Bill Blasters. Bullet Bills normally fly in a straight line, but they change course and directly target Mario if he is within their proximity. Mario can lure Bullet Bills towards cages and fences in order to destroy them. Their eyes flash with red light and their bodies twirl when they lock onto Mario. Good Egg Galaxy, Bowser Jr.'s Robot Reactor, Battlerock Galaxy, Buoy Base Galaxy, Bowser Jr.'s Airship Armada, Bowser Jr.'s Lava Reactor, Dreadnought Galaxy, Melty Molten Galaxy, Bowser's Galaxy Reactor, Bubble Blast Galaxy None
 
Banzai Bill
Slow-moving missiles. Their line of trajectory is fixed in one direction, and they slowly rotate as they move. Bowser's Galaxy Reactor None
 
Torpedo Ted
Underwater missiles. Their eyes flash red and they home in on Mario when he is in close proximity. They can be lured towards glass cages to break them. Buoy Base Galaxy, Drip Drop Galaxy None
 
Lava Bubble
Floating drops of lava that propel themselves towards Mario. Lava Bubbles appear during the boss battle with King Kaliente. Shooting them with a Star Bit defeats them. They otherwise burnout on their own. Good Egg Galaxy, Bowser Jr.'s Lava Reactor, Melty Molten Galaxy Template:Chart icon×1
 
Pokeynut
Giant Pokeys. They slam their heads downward to strike Mario. Their bodies fall apart when struck by coconutsB, causing their head to fall and be partially submerged in the surrounding sand. Stomping on their overturned heads defeats them. Good Egg Galaxy, Dusty Dune Galaxy Template:Chart icon×1
 
Pokey Head
Green Pokeys. They are buried with only their flowers visible. When approached by Mario, they burst out of the ground and start hopping towards him. A Pokey Head bounces in place if it successfully strikes Mario. They can be defeated in a single hit with a spin or stomp. Gusty Garden Galaxy, Dusty Dune Galaxy Template:Chart icon×1
Template:Chart icon×3
 
Chomp
Metal enemies that roll in a set trajectory. The only way to defeat them is by running into them as Rainbow Mario. They bark when in close proximity. A cannon in Good Egg Galaxy expels Chomps. Good Egg Galaxy, Battlerock Galaxy, Ghostly Galaxy Template:Chart icon×7
 
Ruby Rock
Giant, rolling rocks. They are made of cragged stones with a red gem in their center. Ruby Rocks roll around in circles or off the sides of platforms, damaging Mario on contact. Spinning into their red gem destroys them. There are caves that indefinitely release Ruby Rocks in several galaxies. Good Egg Galaxy, Honeyhive Galaxy, Gusty Garden Galaxy, Freezeflame Galaxy, Dusty Dune Galaxy, Gold Leaf Galaxy, Melty Molten Galaxy Template:Chart icon×7
 
Wiggler
Caterpillars that walk around in circles. Performing a Ground Pound on nearby earth or directly spinning one flips a Wiggler onto its back. If the incapacitated Wiggler is not defeated within five seconds, it becomes angry and uprights itself. An enraged Wiggler is much faster and cannot be harmed. It calms down after a few seconds. Wigglers can be defeated in a single hit by Ground Pounding them. Honeyhive Galaxy, Beach Bowl Galaxy, Bowser Jr.'s Airship Armada, Gusty Garden Galaxy, Gold Leaf Galaxy Template:Chart icon×7
 
Koopa Troopa (Green)
Green-shelled turtles. They walk back and forth in a straight line. When jumped on, they retreat into their shells, allowing Mario to pick it up and use it as a Green Shell. Space Junk Galaxy, Bowser Jr.'s Airship Armada, Dusty Dune Galaxy, Sea Slide Galaxy, Dreadnought Galaxy, Bigmouth Galaxy Template:Chart icon×1
 
Koopa Troopa (Red)
A red-shelled Koopa Troopa that walks around in a circle. Jumping on it causes it to retract and gives Mario access to a Red Shell. Sea Slide Galaxy Template:Chart icon×1
 
Dry Bones
Undead Koopa Troopas. They chase down and tackle Mario on sight. If stomped on, spun, or hit with a shell, Dry Bones crumble into a pile of bones, but regenerate after a few seconds. There are three ways to truly defeat Dry Bones: by luring a Bullet Bill into them; by running into them as Rainbow Mario; or by luring them into quicksand. Dusty Dune Galaxy, Bowser's Dark Matter Plant, Bowser's Galaxy Reactor Template:Chart icon×3
 
Magikoopa
Robed Koopas that can teleport. They toss magical fireballs at Mario with their wand. Shooting one with a Star Bit does not leave it dazed but does make it stall. A Magikoopa featured in one of the opening cutscenes is localized in English as "Kamek". Space Junk Galaxy, Bowser Jr.'s Airship Armada, Toy Time Galaxy, Deep Dark Galaxy, Matter Splatter Galaxy, Sand Spiral Galaxy Template:Chart icon×1
 
Mecha-Bowser
Mechanical Koopas that breathe fire. They can only be defeated with a Ground Pound. Spinning them causes their heads to swing back and briefly delays their fire breath attack. Toy Time Galaxy, Dreadnought Galaxy Template:Chart icon×1
 
Bob-omb
Walking bombs that look like wind-up toys. Bob-ombs actively pursue Mario until they explode. Jumping on a Bob-omb disengages it, turning it into a bomb that can be picked up. Battlerock Galaxy, Dreadnought Galaxy, Rolling Gizmo Galaxy None
 
Cannonball
Round ammunition shot from enemy cannons. They maintain a straight, horizontal trajectory and travel slowly. They burst when they make contact with Mario. A cannonball is taken out when shot by a Star Bit. Battlerock Galaxy, Bowser Jr.'s Airship Armada, Gusty Garden Galaxy, Sling Pod Galaxy, Dreadnought Galaxy Template:Chart icon×1
 
Thwomp
Angry-looking stones. They are suspended in mid-air but periodically slam down towards the ground below. Crushing Mario completely depletes his life meter. The tops and sides of their bodies can be used as platforms and walls, respectively. Slightly smaller Thwomps appear in the 2D sections of several galaxies. Bowser's Star Reactor, Beach Bowl Galaxy, Buoy Base Galaxy, Dusty Dune Galaxy, Dreadnought Galaxy, Melty Molten Galaxy, Bowser's Galaxy Reactor Template:Chart icon
 
Bomp
Stones that shift in and out of walls. They do not damage Mario directly, but they are positioned to push him off of platforms and solid ground. The tops of their bodies can be walked on. Buoy Base Galaxy, Freezeflame Galaxy Template:Chart icon
 
Tox Box
Giant boxes made out of stone. They roll around in set trajectories. One of their sides is open and can be safely stood under, while the other sides crush Mario. Tox Boxes are the same width of the paths they travel, making them difficult to avoid. Beach Bowl Galaxy, Toy Time Galaxy Template:Chart icon
 
Urchin
Sea creatures with protractible spines. They roll towards Mario when he is in close proximity. They can only be damaged by shells and fireballs. Beach Bowl Galaxy, Buoy Base Galaxy, Freezeflame Galaxy, Sea Slide Galaxy, Drip Drop Galaxy, Deep Dark Galaxy Template:Chart icon×5
 
Cataquack
Duck-like creatures that toss Mario high into the air, although this does not harm him. Cataquacks immediately charge towards Mario after making visual contact. They otherwise idly walk in circles or sleep on the ground. Spinning them or performing a Ground Pound temporarily dazes them. They cannot swim and drown if led into water. Beach Bowl Galaxy, Gold Leaf Galaxy None
 
Boo
Ghost enemies. Boos pursue Mario when his back is turned towards them. If Mario looks directly at them, they shield their eyes and stop moving. Spinning shifts their position and forces them to phase through nearby walls, but they cannot be damaged this way. They are only weak to light – including the headlamp of the Toad Brigade Captain. Some Boos are found underwater. Mario can transform into one via the Boo Mushroom, which causes any nearby Boos to become enamored with Mario and chase him. Ghostly Galaxy, Deep Dark Galaxy, Bigmouth Galaxy, Sand Spiral Galaxy Template:Chart icon×1
Template:Chart icon×1
 
Atomic Boo
A large Boo. It can only be defeated with a light source. The Spooky Speedster is an Atomic Boo. Deep Dark Galaxy Template:Chart icon×1
 
Amp
Floating, smiling orbs. Amps discharge electricity and shock Mario on contact. They move in one direction, typically in a circular pattern around poles. Buoy Base Galaxy, Dreadnought Galaxy, Bubble Blast Galaxy Template:Chart icon
 
Zap Ball
Large Amps. They are typically in pairs. Unlike normal-sized Amps, the big ones lack faces. Space Junk Galaxy, Battlerock Galaxy, Buoy Base Galaxy, Gusty Garden Galaxy, Toy Time Galaxy Template:Chart icon
 
Blooper
Underwater squids. Bloopers swim erratically when approached by Mario in an attempt to strike him. Spinning one or striking it with a shell defeats it. They release a cloud of ink when defeated. Buoy Base Galaxy, Deep Dark Galaxy Template:Chart icon×3
 
Cheep Cheep
Pudgy red fish. Underwater, they passively swim in circles. On land or shallow water, they hopelessly bounce around in a set trajectory. They can be defeated with a spin or a jump. Deep Dark Galaxy Template:Chart icon×1
Template:Chart icon×3
  
Spiny Cheep-Cheep
Pufferfish enemies that protract their spines and charge towards Mario on sight. They are only found within sunken treasure chests. Drip Drop Galaxy Template:Chart icon×7

Obstacles

Name Description Locations
 
Bill Blaster
Cannons that shoot Bullet Bills. Bill Blasters are mounted onto the surface of planets, integrated into the walls of terrain, and attached to the sides of airships. Many Bill Blasters are built into the body of Megaleg. The cannons do not shoot more than one Bullet Bill at a time. Good Egg Galaxy, Bowser Jr.'s Robot Reactor, Battlerock Galaxy, Buoy Base Galaxy, Bowser Jr.'s Airship Armada, Bowser Jr.'s Lava Reactor, Dreadnought Galaxy, Melty Molten Galaxy, Bowser's Galaxy Reactor, Bubble Blast Galaxy
 
Banzai Bill Cannon
Giant cannons that shoot Banzai Bills. Bowser's Galaxy Reactor
 
Torpedo tube
Underwater cannons that shoot Torpedo Teds. Buoy Base Galaxy
 
Chomp box
Giant turrets that release Chomps. Little doghouse-like Chomp boxes release Mini Chomps. Good Egg Galaxy, Dreadnought Galaxy
 
Burner
Cannons that create small explosions. It takes a few seconds for them to charge up. Good Egg Galaxy
 
Cannon
Enemy cannons that shoot cannonballs. They are built into the sides of terrain. Cannons fire continuously in set intervals that can be timed. Battlerock Galaxy, Bowser Jr.'s Airship Armada, Gusty Garden Galaxy, Sling Pod Galaxy, Dreadnought Galaxy
 
Black hole
Bottomless voids with their own gravity. Mario is pulled into black holes if he gets too close and lose a life. They exist in the center of several spherical planets and function similarly to bottomless pits. Good Egg Galaxy, Honeyhive Galaxy, Flipswitch Galaxy, Bowser Jr.'s Robot Reactor, Space Junk Galaxy, Battlerock Galaxy, Hurry-Scurry Galaxy, Bowser's Star Reactor, Sling Pod Galaxy, Beach Bowl Galaxy, Ghostly Galaxy, Bowser Jr.'s Airship Armada, Gusty Garden Galaxy, Freezeflame Galaxy, Honeyclimb Galaxy, Bowser's Dark Matter Plant, Gold Leaf Galaxy, Sea Slide Galaxy, Toy Time Galaxy, Bowser Jr.'s Lava Reactor, Deep Dark Galaxy, Dreadnought Galaxy, Melty Molten Galaxy, Gateway Galaxy, Bowser's Galaxy Reactor, Bubble Blast Galaxy
 
Mud
Mario's movement speed and jump height is greatly reduced when he is in mud. This puts him at potential risk if dangerous enemies are nearby. Good Egg Galaxy
 
Honey
A sweet substance collected by Honeybees. Honey reduces Mario's movement the same way mud does. Honeyhive Galaxy
 
Lava
Molten rock. Direct contact burns Mario and makes him bounce into the air with his hands on his rear. Some small planets are completely covered in lava. On others, the lava rises and falls like the tide. Good Egg Galaxy, Bowser's Star Reactor, Freezeflame Galaxy, Bowser's Dark Matter Plant, Bowser Jr.'s Lava Reactor, Melty Molten Galaxy, Bowser's Galaxy Reactor
 
Lava Geyser
Lava Geysers rise and fall in set intervals that can be timed. A rise is always proceeded by rapid bubbling on the lava's surface. Freezeflame Galaxy, Melty Molten Galaxy, Bowser's Galaxy Reactor
 
Fireball
Trailing fireballs shot out of lava. They move very slowly and burn Mario on contact. They typically move in an arch. Freezeflame Galaxy, Melty Molten Galaxy, Bowser's Galaxy Reactor
 
Fire geyser
Hot steam forced from the ground. Making contact burns Mario. Space Junk Galaxy, Freezeflame Galaxy, Melty Molten Galaxy, Bowser's Galaxy Reactor
 
Fire Bar
Rotating bars of fireballs that burn Mario on contact. Battlerock Galaxy, Bowser's Star Reactor, Toy Time Galaxy, Deep Dark Galaxy, Melty Molten Galaxy, Bowser's Galaxy Reactor, Sling Pod Galaxy
 
Freezing water
Water so frigid that it gradually depletes Mario's life meter if he tries to swim through it. When Mario enters freezing water, the screen is briefly disrupted by a static-like visual effect, readily differentiating it from normal bodies of water. During "Hot and Cold Collide", this water rises and falls on one of the planets. Freezeflame Galaxy
 
Whirlpool
A swirling vortex of water. Contact pushes Mario and temporarily stuns him, but it does not cause damage. Sea Slide Galaxy, Deep Dark Galaxy, Bigmouth Galaxy
 
Snow
Powdery snow that reduces Mario's speed when walked through. The snow is cleared when the Star Pointer is waved over it or with fireballs. Snow Cap Galaxy
 
Ice sphere
An ice planet. The surface is so cold that direct contact makes Mario leap as if he was burned and reduces his life meter. Bowser's Galaxy Reactor
 
Poison swamp
Poisonous sludge. If Mario falls into the poison, he sinks and loses a life. Bubble Breeze Galaxy, Toy Time Galaxy
 
Quicksand
Shifting sands. It functions identically to poison in that it rapidly causes Mario to sink and lose a life. Dusty Dune Galaxy, Sand Spiral Galaxy, Bowser's Galaxy Reactor
 
Moving sand
Rapidly flowing sand. Mario can stand on it but is brought down his intended trajectory and potentially into hazards. During "Treasure of the Pyramid", the sand rises inside of a pyramid. Dusty Dune Galaxy
 
Dark matter
Dark matter causes Mario to disintegrate and lose a life if he makes contact with it. Bowser's Dark Matter Plant
 
Electric rail
Electric barriers. They emit either green or red electricity and move horizontally in some galaxies. Spiky Topmen can be defeated by spinning them into an electric rail. Topmaniac can only be damaged by knocking it into rails. Good Egg Galaxy, Flipswitch Galaxy, Battlerock Galaxy, Toy Time Galaxy, Dreadnought Galaxy, Sweet Sweet Galaxy, Bubble Blast Galaxy
 
Electric Ball[1]
Metal orbs that spin around the sides of disc-shaped planetoids. They are similar to Amps and electrocute Mario on contact. Battlerock Galaxy, Dreadnought Galaxy
 
Spikes
Spikes damage Mario on contact, and generally appear attached to terrain and shifting objects. Moving lifts with spikes embedded into their sides appear in a few galaxies, and bergy bits in "Wall Jumping up Waterfalls" are covered in ones made of ice. Good Egg Galaxy, Flipswitch Galaxy, Beach Bowl Galaxy, Gold Leaf Galaxy, Toy Time Galaxy
 
Crushing pillar[2]
Walls that shift up and down. Mario loses a life if crushed. Battlerock Galaxy, Dreadnought Galaxy
  
Bars / Crystal
Thin barriers that can only be phased through by Boo Mario while he is invisible. Ghostly Galaxy, Boo's Boneyard Galaxy
 
Spotlight
Beams of light. They can be used to defeat enemy Boos, but they will also force Boo Mario back into his normal form. Ghostly Galaxy, Deep Dark Galaxy
 
Bone[3]
Floating barriers in courses where Mario races the Spooky Speedster. They can obstruct Mario's path. Most bones have simple designs and are purely obstructive, but some are ribs that shift up and down. Some are encased in meat that bounce Mario on contact. Few are cackling skulls. Ghostly Galaxy, Boo's Boneyard Galaxy
 
Bramble
Thick, thorn-covered vines that damage Mario on contact. Gusty Garden Galaxy
 
Spring
These floating springs bounce Boo Mario back on contact but do not cause damage. Boo's Boneyard Galaxy
 
Bumper
Floating objects that bounce Mario on contact. Bubble Blast Galaxy
  1. ^ Super Mario Galaxy internal filename (ObjectData/ElectricBall.arc)
  2. ^ Black, page 111
  3. ^ Black, page 145