Billy is an angry little boy. Today is an especially angry day. Billy is so angry he's seeing red! Angry Billy is quite the little monster! Betty and Sally have noticed Billy is angry and they want to make him happy! Billy wants to stay angry though, and keeps finding items that make as angry as can be.
In Stay Angry, the object is to keep Billy an angry little monster for as long as possible. Grabbing certain items make Billy angrier and give him points. However Sally and Betty want to make Billy happy by giving him flowers. Stay away from the flowers!