Paper Mario- True classic, 20+ hours of gameplay and good story and a very good deal for the price

Kirby's Adventure- Short game but very fun

Sim City- This is one of my favorites, This has a lot of replay value and its enjoyable building your own city                       ( and destroying them)

Contra SNES- hsa*ggfahs? 6levels but still can't beat it grrrrrrrrrrrr >.<

Bomberman 94 SNES - multiplayer still fun

Street of Rage 2 sega gen- beat it 20+ times still fun to play

neo geo
Top Hunter, hard to explain this exactly, it's a 2 plane action game with fighting game style special moves mixed with stretch armstrong.... that's really the best description I can think of
Baseball Stars 2, frantic, crazy, loud and lively arcade style baseball
Magician Lord, action platformer,

turbo grafx
AirZonk, wacky shooter, great music
AirZonk Rockabilly Paradise, cd air zonk, not quite as good unfortunately
Splatterhouse- action game in it's purest sense walk forward and bash enemys
Galaga 90, sequel to the original Galaga, use the power up mode to make the game more interesting
Blazing Lazers, part of the aleste series of shooters, I think, lots of action
Chew Man Fu, quirky odd ball co-op action puzzle game

Nes
Bubble Bobble, can't believe no one mentioned this one, some of the best 2 player action on the nes

kirby 64
of course LoZ:OoT
paper mario-love that game

Hmm... Super Metroid is amazing, as is Paper Mario. Both great games.

Super Street Fighter 2. I got it last week for 800 points.

I also liked a lot Galaga...i remember played it when i was a kid. The other games i had from VC were mentioned before

And I would like to add Kirby 64, great adventure 2.5D game, just finished beating dark matter

Super Mario 64, the game that changed gameing !