Chopper Rescue is a game played using the accelerometer. The aim is to rescue as many survivors while avoiding the Buildings, airplanes, balloons or the thunder clouds. When you are low on fuel, tankers appear and help you refuel.
This game is made using the Gideros SDK and the source code to the game can be found in the book Learn Lua for iOS Game Development published by Apress and authored by Jayant C Varma of OZApps.