NeoGeo Pocket emulator for GBA has been updated. Changes:
- Added speedhacks for a lot of games.
- Added emulation of batteries & sub battery.
- Added RTC alarm.
- Added power button (SELECT).
- Added D button (R) (check Doko Demo Mahjong).
- Fixed a couple of cpu bugs affecting Metal Slug 1 and a couple of other games.

http://www.ndsretro.com/