Time to revisit the memories. See also - GBA Emulator for PSP
1. Download MyBoy from the google play store. Its free of course.
2. App will install.
3. MyBoy does all a GBA can do and more too. It can fast forward your game, enable Cheats and take screenshots.
4. Download the games from Coolrom.com . The games are in .RAR format. DO NOT unrar them.
5. Open MyBoy and access the game from within the client. Done!