From GameBrew - a wiki dedicated to Video Game Homebrew.
Gizmo's Adventure is a Nintendo DS homebrew Jump’n'Run game developed using C++, libnds and maxmod.
Control Gizmo and collect the golden rings. You can attack the enemies by jumping onto them.
Left/Right - Move gizmo
A - Jump
X - Run
Start - Pause
Tested on Flashcard DSTT/TTDS with Firmware 1.17a12.
Works on No$GBA.
Programming and Design by Nicholas Crook.
Sprites by Dark Angel.
Tileset by Pixel Pusher.
Audio by Various sources from http://www.flashkit.com/.