Character Race is a mode in Formula Cartoon where you could challenge some CN stars like Ben, Finn, Princess Bubblegum, Rex, Gumball, Mordecai, and many more.
In this mode, there are three types of difficulty: easy, medium, and hard. Easy rewards is often 50 GP. Medium rewards is often 100 GP, and hard rewards is often 150 GP. This mode doesn't give experience rewards.