Bowser's Sinister Slots is a Bowser Battle minigame appearing in Mario Party 10. It is one of the extended minigames that does not appear at normal times; rather, it appears as one of the minigames that Bowser can choose when he gets angry or he enters Big Bad Bowser Mode. This minigame is set in the place with two trains, where Bowser is seen pulling the lever of the slot machine attached to the train before the minigame starts.
Overview
The minigame takes place in The Bowser Express from Super Mario 3D World. Bowser, controlled by the 
, has to press the button on the bottom of the slot machine; the slot machine shows faces of each character. When all three buttons are pressed, then the Bill Blaster on the bottom will fire Bullet Bills on targeted characters. When three same characters are chosen, Bowser will fire nine Bullet Bills on a targeted character. Other players, controlled by the Wii Remote, must avoid Bullet Bills so that they can avoid losing their hearts.
Controls
Heroes
Press directions on the 
- Move
Bowser
Tap virtual buttons on the screen of the - Press buttons
Names in other languages
Trivia
- If any players lose all their hearts, they can still be selected on the slot machine by Bowser. However, the Bullet Bill will not target that player, it will just fly straight.