Cupcakes are food items that appear in Angry Birds Go! used as a energy system after defeating Stella. Each set of 5 cupcakes are loaded into individual characters. One race will consume one of it. The cupcakes will regenerate over time and will be longer as every new character defeated during Champion Chase is available to play. If one bird loses all cupcakes, they will not be able race anymore until one more reappears, refill full cupcakes via watching an advertisement video or paying gems.
In v2.0, the cupcake was replaced by energy.