Hi there.
Was playing spiderman for the megadrive tonight and wondered what other Marvel super heroes games were released for the system.
Here is a little list of what I have found:

Megadrive/Genesis:
Spiderman vs the kingpin
Spiderman animated series
Spiderman and venom Separation anxiety
Spiderman and venom in Maximum carnage
Spiderman and xmen: arcade's revenge
X-men
X-men 2: clone wars
The punisher
The incredible Hulk
Captain america and the avenger
Wolverine: Adamantium Rage

32X:
Spiderman web of fire

MCD:
Spiderman vs the kingpin

Think I missed any ?