What are the controls for mugen

as far as I know, you can change the controls in the options menu, then choose Input config, then set the controls.
A=Light Kick
B=Medium Kick
C=Hard Kick
X=Light punch
Y=Medium punch
Z=Hard punch
Start=taunt
pressing esc quits the match

Each creator makes his characters do special moves when certain buttons are inputted.

And for Acknowledge every character have its own specail move and how to do them for example Pokemon trainer have a specail move u can do it by triple z and ithink itachi have 2 specail move : 1.A and S together
2.Q and W together



Note: Some characters from SNK will only have a 4 button scheme AB and XY