Use the arrow keys to move the hippo around to kill the penguins. But you only have 3 lives so watch out for the evil penguins (the light blue) that will kill you! The goal is just to kill the most penguins.
Thanks to Kyle (AwesomusBossamus) and Cameron (Noodlelord) who helped me figure everything out! Just so you know, sometimes it glitches out and the scoreboard and the lives get all messed up. Just try press the green flag again and it should work. If it doesn't fix itself, let me know and I will fix it. Keep in mind this was my first real project on scratch so please no hate!