This is a very early prototype of the emulator, there for very slow so games will not work at a playable speed. The author released it as a proof of concept to show that it is possible to emulate the DS on the Android platform. He does not expect a stable version to be released before 2012. Future improvements the author hopes to bring to the phone are: Dynarec CPU simulation GPU simualtion improvement for speed greatly. OpenGL ES Hareware render FPU Support Roms should be placed in /roms/nds on the SD Card. Download Tiger NDS Nintendo DS Emulator for Android View the development thread over at XDA Developers.