- “This place... It looks like it might be pretty well protected. I betcha we're moving right in on the enemy's home base. Whaddya say we drop in unannounced?”
- —Lubba, Super Mario Galaxy 2
World 5: Trial of the Galaxies is the fifth world featured in Super Mario Galaxy 2. World 5 is a galaxy cluster. It holds seven galaxies, the last of which, Bowser Jr.'s Boom Bunker, features the third and last encounter with Bowser Jr., who now attacks with his Boomsday Machine.
Galaxies
Gallery
- Bowser Jr.'s Boom Bunker.png
Bowser Jr.'s Boom Bunker
World 5 as viewed from the Grand World Map.
Trivia
- This is the only world in the game where Yoshi doesn't appear in any galaxy.