You are Zool, Interstellar Cosmos Dweller from the Nth Dimension, the land of imagination. As the Protector of Creative Thought and Defender of Positive Action, you must protect the Nth Dimension from the evil Krool and his assistant, Mental Block. These stellar miscreants have unleashed the forces of unimagination, turning ordinary objects into lethal assassins. During your mission, you must explore five wacky worlds: Sweet World, Music World, Fruit World, Fairground World, and Toy World. In each world you will face dozens of Krool's Legionaires including jelly, carrots, grapes, balloons, teddy bears, and flying pea pods. At the end of each level, you must battle a Beastie. To fight these forces of unimagination and progress through the game, you can jump, kick, fly, climb walls, run, crouch, slide, fire weapons, and spin in the air. Spinning in the air destroys all airborne enemies. In addition to the standard 2D platform action, there are a number of puzzles to solve, secret passages to discover, and hidden rooms to find.