a little trick i found while playing: if you click on an attack from your menu and then attack, u can double click on it just as u attack and that will cause the character to do twice as many attacks. That means its practically an insta-kill if you use combo 5. This is similar to what gabrielzz pointed out but there's a different effect.
 "Accelerator"){kind=icon}
 "Castaway"){kind=icon}
 "Sydney Shark"){kind=icon}
 "ButtonHunt 2"){kind=icon}
 "Run"){kind=icon}