Only tried ppsspp on android for a bit, a playstation portable emulator. Learned that psp emulation is quite good on android, while 3DS emulation is garbage, apparently 3DS cpu is a hungry bastard and there are two of them.

Don't know any good psp games, most of them seems to be censored versions of pc games, and why the hell would you play a shittier version. Well, because you are playing in public, and walking with boner in public is probably pretty embarrassing for everyone involved.