Your character is constantly bouncing. Purple stuff makes you bounce. Red stuff kills you.
See the reboot of this game with scrolling. that game is basically my test for a scrolling platformer. Bouncy Ball Guy v1.2: https://scratch.mit.edu/projects/856718935 (I apologise for the inconvenience on not having a clickable link, as I actually do not know how to. Please comment on how to do it. In the mean time just copy and paste the link into the URL bar thingy.) Boo.