mortal kombat eh? interesting....I can think of alot of good ones for that
Boot sound " MORTAL KOMBAT!!!!!" power on, "GET OVER HERE!!" , power off, "Flawless Victory!" Swing 1 , "FATALITY!!" ect...
the power down with flawless victory is definitely one i'm working on
as for the others, I have a great one for powering up and the blade lock-up effects
still thinking of the best use of the sounds I have, but got plenty of time. don't need to decide now.