IutLife is a project mainly written in C, it's free.
Space invaders like for Nintendo DS
Game developped with windows 7 and devkitpro/Palib for a first year school project. It's developed in C with french comments and not perfectible (i was beginner ;)). For try : use iutLife_0.6.nds with an emulator (no$gba ?) or a linker. Good game ;)