Pac released his First Person Shooter AlienDS for Nintendo DS. This games uses the Nitro Engine.

Release notes:

I’m new here (and to ds development) and I wanted to get some feedback on this game I’ve been developing this past week. It’s a little FPS, with aliens! At this point it’s still a work in progress, only 3 levels, very few SFX and just one weapon, but I think there is already enough to show and get some suggestions.

In each level there is a blue key hidden that is needed to open the exit door. Also, some credits, I used the NitroEngine to help me code this, very nice!

http://forum.gbadev.org/viewtopic.php?t=16126