well... you dont need a ps1 emulator if you have a custom firmware. you just need to go get AutoPopstation 4 and convert your ****LEGAL**** isos. and for crash bandicoot, there's a edited iso that has all the games in on (not sure if its legal.)

File Details-gpSP-0.9-1.5-EBOOT-PSP-Emulators -
thats a gba emulator. it doesnt ron gbc or regular gameboy games. you also need the bios, which is illegal.

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