Originally Posted by
Sharkerbob
More like The Amazing Hibernation Man! Most of their extreme survivability comes at the cost of, like, actually being able to do anything but go into a coma to wait out the harsh conditions. He'd probably be like Stone Boy from the Substitute heroes, able to become like a statue that can't be broken, but also can't move while in his invulnerable state. That could be useful/funny if he makes sure to join a team that can use him as a battering ram.
Actually, they might be able to function under extreme heat, still, but I can't be bothered to look at the wiki article again. So maybe he'd be pretty heat proof.