My problem with challenge mode is that it isn't very informative. I've started with Wolverine, did great. Then it said to combo Tornado Claw with Diving Kick. I can do Tornado Claw, but the move list doesn't even have Diving Kick. I hate looking **** up online to do stuff, so it let me down quite a bit.
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Commodore
http://img.imgcake.com/commodorepngdy.png