Different monsters in one have to survive in the retro planet world. monsters suddenly turned into cubes and they need to reach the end of the level by jumping from obstacles in their cube state. Jump over obstacles and collect stars. You have to collect the stars because you have to have 20 different monster costumes. In some sections, you can get on a rocket and fly on a rocket. If you get on the rocket, whatever costume youre wearing will return to its original state.