If you don't have the physical handheld, the PPSSPP Emulator is your best bet for playing these fan versions on Android or PC.
There are no classic Titan games. So no. attack on titan for psp work
These are typically indie projects built using engines like Unity or simplified versions of the popular Attack on Titan Tribute Game 0;3ae; ported or modified to run on the PPSSPP Emulator. If you don't have the physical handheld, the