Press space to increase power. Try to beat the high score! (It wasn't working, but now it is.) I got 39. Another course may come soon. Also, check out the train studio, https://scratch.mit.edu/studios/25999047/projects/!
I'm remixing all of my best projects from my old account, @mm-23027, and this one made the cut! Enjoy! (Please also check out the original!) Created way back in Scratch 2.0!