Press the green flag and see what happens...you won't.
I changed the drum number from 36 to 1. I changed it from 5 steps to 50 steps. I changed the drum from 42 to 7. I changed the "turn" from 45 degrees to 90 degrees. I changed it from -5 steps to -50 steps. I also added "play drum 7 for 0.1 beats", "turn [clockwise] 90 degrees", "switch costume to costume1", and "turn [clockwise] 90 degrees" at the end of the original script (in that order).