The main objective of the game is to explore worlds and chase Quinn out of them while gathering the scattered magic. There are ten levels and three boss fights (two in the PC version), though there is also a bonus level which can be unlocked by completing the bonus stages in each level. To traverse these levels, the cat can jump, glide with his umbrella, zipline, slam the ground with his umbrella and collect enemies and explosive goo in bubbles for use as projectiles, among other maneuvers.
The hub world in this game is Conrad and Sally's House. However, when the player starts a new game, they will only have access to the Living Room, as Conrad and Sally will prevent the Cat from going upstairs and into the Kitchen and Garage, respectively. As the player clears the levels, Conrad and Sally will allow the Cat access to those areas.[4]
There are ten levels and three boss fights (two in the PC version).[4] There is also a bonus level which can be unlocked by completing the bonus stages in each level. In each level, the Cat must make it to the end to chase out Quinn while collecting the scattered magic. To traverse these levels, the cat can jump, glide with his umbrella, zipline, slam the ground with his umbrella and collect enemies and explosive goo in bubbles for use as projectiles, among other maneuvers.
The game utilizes a health meter which is a cake consisting of four slices and a cherry on top, with each slice and the cherry representing a hit point. If the Cat collides with an enemy or obstacle, a slice or the cherry is removed from the health meter. When all slices and the cherry are gone, the Cat loses a life. If the Cat loses all of their lives, the game ends. If this happens, the player can restart the current level from the beginning or return to the title screen and restart from their last save point.
The game has a variety of collectibles. Each level contains small clusters of magic whose value varies by color; if every cluster is collected within a stage, the stage's appearance in the hub world returns to normal. Collecting all of the magic in the game will allow the player to view the game's true ending where the crate is sealed. In addition to the magic, there are slices of cake that restore the Cat's health and clapperboards that unlock clips from the movie for viewing in the menu when collected. Each stage contains 4 keys which are stolen by Thing One and Thing Two. Collecting all 4 keys unlocks the bonus door at the end of the level. The bonus door at the end of each stage leads to a short segment of gameplay where the player must outrun hazards such as rolling objects, rising liquids, and laser beams to collect some additional magic and a bonus crystal at the end. The bonus stages are inaccessible in the PC version of the game due to the hardware limitations of the computers at the time the game was released.[4] When the player opens the bonus doors in this version, they just simply get the magic and gems instead. When a player collects a gem in a level, it will be inserted in one of the slots on the edge of the mirror near the Grandfather Clock level in the hub world. When all the gems are collected, a bonus stage called Mystical Mirror is unlocked.
Each level in the game has checkpoints, which are either tunnels or checkpoint cameras. If the Cat passes one of these and then loses a life, he will restart from the last one he passed.[4]
In the game's boss fights, the Cat fights Quinn's machine, which is powered by the Crab Lock, and must fire bubbles full of enemies into the machine's exhaust pipe to damage it. After the Cat damages the pipe enough times, he will obtain a portion of the Crab Lock needed to seal his crate. In the Xbox and PS2 versions of the game, the Cat must hit the piece of the Crab Lock with explosive goo to obtain it. If the player revisits one of these stages after completing it, Thing One and Thing Two will pilot the machine instead of Quinn.