It took me five or six attempts to finally escape the evil aquarium. When I first got the double jump, I didn't even realize it because I picked up the key right after and it overwrote the text. I really love the art; I think you did a great job! The hitboxes are wayy too unforgiving, though. I died three times trying to jump over the back-and-forth ghost. Also, the dynamic waves kept glitching out for me.
