If you are rather a so so player or simply not good at fighting games, then picking INFERNO is the right choice for you!
Today I had play on VERY HARD with Inferno. I did not practice, look on the move set or whatever. What I did notice is: his movesets are crazy!
Everything makes a lot of damage, easy to execute, and fast. Playing for the first time I got like 6'41' and for the the 2nd time I got like 7'53".
Step #1: Unlock Inferno character (clear every story mode for charactes)
Step#2: Learn just few moves with this guy.
I show them in the begining of the video:
(this one I read in the solution here so I do not want to take any credits for using this move, ok?)
Notice that some characters will put up a fight, but no need to worry. Just try again to hit them with whatever move (forward Y,Y,Y,Y, or simple
Give it a try on the VERY HARD, so you can get 2 achievements (unlock the legend achievement and Keep Your Eye on the Gold) in 1 play, because it is possible! (^_^)
Again - I did not train for it, no tactics, strategy, just simple "play" and using few simple moves.
Good luck with the achievements!