Collapse Castle is a castle ruin that came into being after Drawcia turned Dream Land into a world of paint. The ruins have a very diverse set of traps, however.
Kirby first must navigate his way through a dark area full of electric walls, Blados, and spiked rotors. Then he must find his way through a series of rooms, filled with switch blocks, Gordos, and lasers. He must find and press switches to advance. Near the door, however, he must dash through a static "no-paint" room, accidentally pressing switches that open up pits for Kirby to fall through. In the third and final area, Kirby must take a series of cannons through a massive no-paint room to advance to a hallway full of Bouncy enemies, before having to take a green goo lift, while avoiding more Bouncys, Fluff Waddle Dees, falling rocks and Flame Shotzos before reaching the goal.