Go to www.gamefudge.com and go on mario combat!!!Here are some cheats for it.

ULTRA JUMP PUNCH

when close to an enemy jump and just befor you touch the ground press attack

EXTREME PUNCH!!!!!!!

when near an enemy hold down and press attack!they should go flying!!!!

MARIO MOONWALK!

hold the right and left key and mario should do an awesome moonwalk!

SUPER MARIO!!!

hold the up and the way you want to go keys and mario should keep on jumping if you carry on holding it!