Boss Fights

Capadre's Apprentice
Capadre's Apprentice is a boss of the Play Stage Galaxy. He is a magician who is the assistant to the great magician Capadre who mario helps out in the mission.

Hypno Blooper
Hypno Blooper is the boss of the Hypno Hamlet Galaxy. He is a giant blooper, similar looking to the Glooper Blooper, except he is dark blue in color and has a large pulsing head.

Before Battle
When Mario reaches his battle platform, it is a large planet in a pool of lava, surrounded by a wooden dock. Once the cutscene begins, King Kaliente appears out of the water and tries to attack Mario. All of a sudden, you hear a rumble, and King Kaliente retreats and flies off into space. A large blooper crashes down into the pool and the lava turns into water.

Prince Pikante
The game's creator hinted that the Shiverburn Galaxy would be returning, as well as it's main boss

Motley Bossblob
A fight against Motley Bossblob (who was originally from Super Mario 3D World), was shown in the E3 trailer for a brief moment.