You type "S" then "M" then "A" then "S" then "H" but its coded in a pretty silly way. It basically just looks for what the last letter you pressed was, and if it's the next in the sequence then you're good. If you go out of sequence, it flubs up the whole machine and you gotta type "SMASH" a bunch more times to get it really rolling again. I personally stare at my keyboard half the time while I play.