|“|| I think cheese is better than cake, because you can have cheesecake, but you can't have cake-cheese!
Gumball Trisha Watterson is the main protagonist of the television series The Amazing World of Gumball. He is a twelve-year-old, turquoise colored male cat that goes to Elmore Junior High with his ten-year-old adopted brother Darwin and his four-year-old sister Anais. Gumball is in Miss Simian's class. Gumball also has a crush on Penny, who is also in Miss Simian's class. Penny has a crush on Gumball as well, but they struggle to express their emotions to each other. 
War Against Fuse
Code Nano appearance
|“||Now Gumball can be your best friend, just don't tell Darwin.||”|
–The FusionFall website's description of the Gumball Nano.
It is currently unknown how DexLabs got a sample of Gumball for Nano development. His Nano was not expected to be released. With this sample it is possible that Gumball may be somewhere unknown for now. Asummingly his fur or sweater could be the Nano item.
Game ChangesHe was released as a Nano on July 27, 2011 along with Rigby, full Johnny Test Nano, Zak Saturday, Chowder, Titan and AmpFibian (Unstable Nano). He has no Fusion or NPC counterpart, thus making his Nano to be unlocked by a code. On October 19, 2011 his brother/best friend Darwin Watterson Nano was also released through code.
- His Nano code is FFCmisadventurer
- Gumball's Nano doesn't have fangs.
- It is unlikely he, Rigby, Darwin, and Mordecai will have a NPC due to the fact that the FusionFall art designer says that it is harder to make animal NPCs than Humans, stating why a character like Lazlo isn't in the game.
- His rocket move is based on the game splash master where you fly using a swan for Gumball to dive in the deep.