|WonderSwan & WonderSwan Color
GameGear & Master System
PC Engine & SGfx
NeoGeao Pocket & Pocket Color
WonderDroid Ultra (formerly WonderDroid X) is a free and open-source emulator of the WonderSwan and WonderSwan Color, GameGear, Master System, Neo Geo Pocket, Neo Geo Pocket Color, PC Engine and TurboGrafx-16 with SGFX emulator for Android. It is a fork of WonderDroid, originally written by Daniel Palmer for older versions of Android and later imported from Google Code.
How to use
1.Open WonderDroid Ultra at least once so that it can create the directories for ROMs, etc.
2.Copy your game ROMs in either
.zip archives or plain
.wsc files into the wonderdroid directory  that has been automatically created. Zips with multiple files should work but it's not been tested.
2.Open WonderDroid Ultra again, it should now have a gallery of the roms you put into it's directoy. Wonderdroid uses the metadata in the rom to select a screenshot. If a game has a question mark it will probably still work. It just hasn't been screenshot'ed yet
- On older phones with minimal internal storage, this directory may be located on your SD card
$ / Fork