Do as it tells you. When you get to the actual game, the arrows match the keys you should press.
I was working on this for a long time offline, when I gave up and stopped. I uploaded it to see if it works better online, but as I put in notes, the game got slow. And that's when I knew scratch isn't as capable as I thought. So, enjoy the music, I guess. Important music by Bulby (https://www.youtube.com/watch?v=UdRkAMCm-1M)
