Move your jellyfish with your trackpad/mouse and try not to hit the sharks! :) It gets harder as it goes! My current high score is 16.
I learned this from Coding Games in Scratch (a book), so credit to the author. I'm going to fix the shark at the end glitch, so stay tuned! ✩✩ Update Log ✩✩ 11/27/16- Shark Glitch Fixed. Just a careless mistake :)