This is the level from Super Mario 3D World, Not the Boss Blitz Galaxy from Super Mario Galaxy 2.
The level begins on a circular grassy platform. There are five Warp Boxes and one locked Warp Box. The five Warp Boxes lead to a boss from a previous world and level. The order of the bosses are: King Ka-Thunk, Pom Pom, Hisstocrat and Queen Hisstocrat, Boss Brolder, and Boom Boom. After the boss in the box is defeated, a Key Coin will appear. Collecting all five Key Coins will unlock the warp box, leading to the sixth and final boss: Motley Bossblob. After defeating him, a warp box leading to the goal pole will appear.
- Green Star 1: Appears after Boss Brolder is defeated.
- Green Star 2: Appears after Hisstocrat and Queen Hisstocrat are defeated.
- Green Star 3: Appears after Motley Bossblob is defeated.