Sonic Adventure 1 and 2 (from dreamcast)

Ninja Gaiden (arcade)

Mr. Do's castle (arcade)

Pac Man Jr. (arcade)

Mario Bros. (pre nintendo arcade game)

Donkey Kong (pre nintendo arcade game)

Mortal Kombat 2 (arcade... eventhough I've already got it for my PS3)

NBA Jam (any version of it...)

NBA Hangtime (same as above)