The game features characters and backgrounds from The Amazing World of Gumball, Adventure Time, Regular Show and Ben 10 Omniverse. The player can create and build levels using the editor in game, and can then send it to the gallery where it can be played by other players. Gumball and Darwin are playable in game.
When a new level is created, a player can choose from a combination of objectives, either to reach the exit door, collect all the gems or defeat all enemies. The player can choose more than one objective depending on how the player wants to create the level. After that, the player can choose a background from either of the shows and start placing objects, enemies to shape up the level. The game can then be tested.
The player can choose from a collection of games that are built by other players.
- The Gumball's Controllable Ego Ball and Darwin's Twin Ego Ball special abilities are a reference to "The Words," where Gumball and Darwin fight each other in the insult battle, firing balls of energy with each insult to damage the other's ego.