EngineBurn is a flappy bird clone with a space theme. Flappy bird works using the base android class Canvas, not a game enigine. There is a persistant UI and performance across devices and hardware. You can choose which UFO you want to play with in the character select menu. Record your high scores on device and when the accompying Server is up you can connect using ServerSockets and if your score is high enough put it on the global leaderboard.