I got my metal Russian dude.

Wow, Jean Gray, AKA Little Miss Pointless actually proved useful. Colossus was holding up a nuclear reactor thing (kind of reminded me of the Final Fantasy 3 scenario where Sabin was holding up the house), and you had to weld the support arms back together to finish the mission. You have to use Jean's powers to put the arms back into place before Cyclops can weld them.

There seem to be a lot of ways to get stuck in this game. Imagine you come to gap where Iceman has to form a bridge in order for you to continue. Imagine he's knocked out, you don't have enough money to revive him, and you saved some time after he died. Or in the case with the metal arms, Jean Gray is knocked out and you can't revive her (then again, I never use her, so that's not exactly a problem for me). In either scenario, you're fucked.