Killer Instinct, like a lot of fighting games, has a ridiculously unbalanced final boss character. One that will nearly make you break your controller in frustration the first few times you face him.
But what if there were a way to use him as your own character?
Well, good news for you!
If you select Cinder
And then on the Vs. screen hold Right on the control pad and quickly press
L, R, X, B, Y, A
Done correctly, you should hear the announcer say "Eyedol", and once you get into the match
He will be yours to command! He's slightly toned down from when the computer's playing him, and he's kind of tough to maneuver. But, hey, you're playing the boss! That counts for something, right?