Basically, you have to press either the up arrow or w to go up so that you don't get hit by the subways (sorry there were no subways/trucks or any other obstacles in Scratch, otherwise it would take a whole code revision). If you collect 30 powerups or more, then you pass, otherwise you fail. You can see how many powerups you have in the "Total" bar and for the explanation of the total, there is the no. of powerups you have collected which is grouped category wise.
