This emulator only runs NDS files. The website states that GBA files will work, but none worked for me. The keys are as follows: Cursor keys = arrow keys Start = Enter key A = Q key B = W key the rest = not emulated There are no help files or any kind of documentation at all. It allows you to open a 2nd demo while the first is running, however the results can be unpredictable (screen not cleared and likely hang). It's best to close the emu and open it again for the next demo. There is no sound. The touchscreen position seems to be out of position a little. Testing of NDS files. ============== birds: runs, birds are corrupted, the man is missing, as are the bird droppings breakout: works carre: crashes emu color: works drugwars: works but top screen is blank earth4b, earth7 : works earth10: works although player is invulnerable electroplankton: black screen ext_palette1: runs, most effects not working or unavailable ext_palette2, famicon_wars: black fearog3d: crashes emu folarium: works framebuffer_demo: works frisbee, ganbare: black gorilla: runs, the banana projectile cannot be seen grid_challenge: works gridlockDS: works guru_guru: black helloworld: works hello_world: crashes emu homebrew2: works iro: works jwpoolDS: top screen is full of scrambled blocks and nothing else happens keys_demo1: works large_maps: runs, top screen is blank (this may be right, never seen this running before) magic_lines: a few tiles appear then no response meteos: runs, appears ok although i couldn't work out how to play it! metroid, mixed_cubes: black nds_wins: runs, pseudo keyboard doesn't work, top screen is blank nds_wins1: wrong screen resolution and top screen is blank ndsmemo: produces a blurred debug message and nothing else neoflash, nibbles11: black nibbles: runs, the cherry is missing oilpanic: starts, then a screen corruption occurs and it freezes omalone: seems to work, although i couldn't get any pieces to move picross: starts running then when it says Puzzle 1 it freezes pingpong: black polarium: crashes emu rPaint, sGolfDS: wrong screen resolution, top screen blank shootDS: target is corrupt, and cannot hit target smb: freezes at intro screen sound_demo1: runs, no sound (of course) space_invaders: works, can't start a game due to unemulated keys sphere: black sponge: works, some background tearing when moving sideways sprite: some display elements are missing sprite1: black sram_demo1: part of the text is corrupted, but it passed the SRAM test submarine: black supermario64: crashes emu table_hockey: corrupted graphics followed by freeze tetris10, tetris12: works tetris11: black text: works texture: black tqueen, tqueen1: runs, top screen is blank, some odd problems with tqueen1 transformer: closes emu trauma_centre: black userinfo: works viewer: crashes emu work_brain: black screen xrickDS: runs, screen flickering, wrong colours yasfcave: works yatzydos: works This emu shows promise. It does reasonably well with the homebrew demos, but, like the other emulators, it doesn't run commercial games. It runs one of the E3 demos.