somewhere there is a really detailed topic about how to run PSX games on the PSP...I'm just too tired to look for it...
To play Gameboy (color) games you first have to get a Gameboy Emulator: Rin is a really good one
For GameBoy Advance games you need another Emulator. It is called gpPSP
Where to download? On the front page there's a nice list...or just use Google...
Oh, and about the games...It's not allowed to talk about Gameboy roms and PSX-ISOs in this forum...But Google is your friend...
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