The following are known Action Replay Codes for Marvel vs. Capcom: Clash of Super Heroes on SEGA Dreamcast (Dreamcast). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark

Infinite Health Plyr 2 (Char2)
852398BF
00000090

Infinite Health Plyr 2 (Char1)
2F3776E4
00000090

Infinite Health Plyr 2 (Char2)
852398BF
00000090

Infinite Health Plyr 1 (Char2)
CECBF258
00000090

Infinite Health Plyr 1 (Char2)
CECBF258
00000090

Infinite Health Plyr 1 (Char1)
42FA0A6B
00000090

Infinite Health Plyr 1 (Char1)
42FA0A6B
00000090

Infinite Health Plyr 2 (Char1)
2F3776E4
00000090