In Fuzed DS by Richard Eric M. Lope and Marc Russel you're a blue-bombing-magic-wielding-beer-bellied-bad-ass-creature and have to rescue all the pink snipes and go to the exit. Read more about Fuzed DS (16-08-2013) (NDS Game)
Aperture Science DS by Smealum and Lobo is an adaptation of the portal games for the Nintendo DS. It includes most of the mechanics found in the original. This version is the first public release. It is very buggy and incomplete, but it is mostly playable. Read more about Aperture Science DS (r1) (NDS Game)
ImpulseDS by Rajveer is a racing game inspired by F-Zero X which includes a track editor, allowing you to test tracks you've created. This is an alpha version so both the track editor and racing mechanics are far from feature-complete. Read more about ImpulseDS v0.1 (Alpha) (NDS Game)
Krystals DS is a game by NightFox. The main objective of the game is to create groups of 3 or more gems of the same color in any direction. A greater number of stones removed in the same movement, more score. Your mission is to get as many points as possible before reaching the last level of the game. Read more about Krystals DS (23-08-2013) (NDS Game)