I remember proposing this as a game group once, with Choplifter as its departure point, and seeing the "Guitar Hero" arcade coin-op last night (apparently a modified, crippled, money-gouging GH3 port to Guitar Freaks hardware) reminded me that it's about time to get this thing going. The typical flow was arcade to home version -- what are some other games that defied this sequence?

I once saw (several years ago now) a Dance Dance Revolution machine that housed one of the PS2 versions of the game. Granted, the machine was completely bootlegged, and consequently, it was destroyed in a matter of weeks.

Nintendo's Vs Unisystem / Playchoice 10 games are obvious shoe-ins for this group. The Nintendo Super System games (an arcade SNES system) fits here too.

Metal Gear Arcade is basically a port of Metal Gear Solid 4's online mode, adding some fancy 3D visualisation.

Argh! I don't want to go to Japan just for this... =(

Pitfall II; It's the first home -> arcade port I remember seeing (though I think not the first) but certainly seems notable. Original Atari 2600 version was 1984, arcade version 1985.

Lode Runner and Boulder Dash both came right to mind. I think there's an arcade version of Quake out there somewhere. Half-Life 2.

If we're counting bootlegs there are hacked-up versions of Sunset Riders, Sonic Blast Man 2, Killer Instinct, and Final Fight 2 (and probably more), though all but Sonic Blast Man are ported from arcade games anyway. :P

edit: forgot, there's also apparently an arcade version of Data East's High Seas Havoc, though I'm not sure which version came first...though the hardware seems to be just stock Genny parts :P

Hell, I used to play hacked up SNES systems with coin counters down here in Mecsikou back when I was in high school. :p

There is 'Need for Speed: Underground' in the arcade. I have also seen 'Mario Kart' that has been completely redone for the arcade, with this camera feature that takes a picture of you before the race and places it above your kart in multiplayer mode.

edit: Come to think of it I have seen EA Sports: NASCAR in the arcade too, EA has really got in arcade thing

Off the top of my head, I can remember Zool and Sidewinder, two Amiga games that were also released as coin-op machine.

Also maybe NY Warriors, though I'm not sure about that one.