Click the green flag, sit back, enjoy. Please check out the nice remixes made by other scratchers: https://scratch.mit.edu/studios/27457559/ And of course, feel free to remix yourself!
I made new costumes - all red circles (except a few black). I also switched the "next costume" block for something more random using the timer. Thanks to @PinkyPepper for suggesting I add music (and proposing it to be featured!) The music is "Slow Motion" by Bensound: www.bensound.com