There are a lot of fighting combinations to choose from as the game progresses. The more bosses you beat, the more weapons you gain. With those weapons come special moves that kill enemies faster and are cooler to look at. Fortunately, there aren't a lot of button combinations to execute these moves. You just pick the dead boss' weapon as your main one and the rest just follows. Press, press, press to kill, kill, kill.
There Will Be Button Mashing