Ok, got my Shadow Force review up:
http://forum.arcadecontrols.com/index.php?topic=73712.msg761574#msg761574And thanks for your inputs... the list groweth:
Arcade:
Spider-Man
X-Men (4 players)
Captain America and the Avengers
The Punisher (haven't tried this w/ him yet, waiting a bit)
Superman
Teenage Mutant Ninja turtles -- whoops, left this one off the list, yeah we play that too
Simpsons
Pretty Soldier Sailor Moon -- hey, I forgot about this one! Cool.
Wild West C.O.W.Boys of Moo Mesa -- Awesome, not comic book but feels like one
X-men vs Street Fighter -- agreed, a good game, but not coop to my knowledge
Warriors of Fate -- not comic book, but we like this one
Eight Man -- cool, very cartoony, superhero feel
Sunset Riders
Hook -- good catch
J.J Squakers
Willow
Ninja Clown -- clowns are scary. nah.
Ninja Baseball Batman -- Good find! But my son may wonder why
Batman is wearing a baseball helmet

Narc
Battle Toads
Caveman Ninja/Joe and Mac
Toki
Bucky O"Hare
G.I. Joe
Ghostbusters -- really? never really gave this one much time in the arcades,
the Commodore 64 version was cooler IMHO
Altered Beast
Michael jackson's Moonwalker
Mazinger Z -- tried this one already, was more of a shmup (but a good one).
... hehe, I remember these guys as "Shogun Warriors", even had a few myself.
Pulirula
Cadillacs and Dinosaurs
Asterix
Genesis:
Adventures of Batman and Robin
Spider-Man Maximum Carnage -- not 2 player
SNES:
Adventures of Batman and Robin -- not 2 player, only Gen version is (weird)
Spider-Man Maximum Carnage -- not 2 player
Spider-Man / Venom Separation Anxiety
PC
X-men Legends -- doesn't exist
X-men Legends II -- will try this one... not sure how it can be 2-player at the
same PC though.
Marvel: Ultimate Alliance -- have to get this one eventually