All PSX games and Super Nintendo Games.
Yoshi: Everything except the N64 one (might come later as Mupen 64 only has some graphical issues)
Donkey Kong: Same like Yoshi. You walk through walls in game. If it's fixed you should be able to play it
Spyro: Yes
Batman: PSX and systems below. (Also Lego Batman on DS)
Crash Bandicoot: Yes. Didn't test myself but I'm pretty sure it works.
Space invaders: Yes
Pacman: Yes