Usually the little kids and / or the people who generally don't play these games who mash buttons, do it with no thought.. except "I have to win!". So that translate well when they push'em fast and carelessly. However, when it comes to someone who is somewhat polished on the gameplay if they mash the buttons with the same intent, they tend to pay more attention to things like openings and timings and what not, just out of their nature of knowing the game, so that tends to seize all kinds of cheapness. I myself am no good at arcade fighters, i suck with the joystick, i had built my own Mame cabinet and suck horribly at everything however give me a game pad and i'm all the better. Ha go figure.