X-men Arcade seconded and also The Simpsons Arcade game. I used to love playing those games with friends at the arcade. One reason I got TMNT on Live. Good memories.
X-Men Arcade (6 Player Co-Op anybody?!)
The Simpsons Arcade (double teaming up!)
Punisher Arcade (I call nick fury!)
APB
Knights Of The Round
Time Killers
also, I'd love to see Wrestlefest. I freaking LOVED wrestlefest as a kid. Ate up most of my allowance on a Friday and Saturday.
[quote name='Genocidal']NBA Jam. TE preferred but I'm not picky.[/quote]
I would LOVE to see NBA Jam TE on XBLA. I brought out my SNES to play it last week. Best basketball game EVER. I doubt it'll happen due to licensing.
Michael Jackson's Moonwalker (Michael Jackson turning into a Optimus Prime knock off is enough comedic value for me)
Spider Man Arcade
Maximum Carnage
X-Men Arcade
Simpsons Arcade
Alien vs. Predator Arcade
Primal Rage
For sure the D&D Arcade games from Capcom. The X-Men Arcade game by Konami get a vote as well. I'd like to see Marvel vs Capcom 2 with online play. I'd also love to see a new Castlevania done like Bionic Commando Rearmed.