Use the arrow keys to move. You can't jump. You only have the illusion of a jump on a bounce pad (a.k.a. the different colored ground).
You are the pirate cat, and you're dinner has been stolen by the pirate penguin. You are not happy about that, and you bounce off of planks to get across to the pirate penguin's ship to get your food back. This is for the contest by @Matscratch1234