Was pretty good besides a few problems.
Well the game itself was very entertaining. The story was pretty good, the style was simple but very good, and the action itself was neat. I liked all the little easter eggs like the little floating jellyfish ands the bird sitting on the nest. The only problems, I think, were the sound, and the slow, monotonous boss battles.
I think you should've added battlesounds. Like when you hit stuff and it squeal or something, especially for the bosses. The music got kind of annoying also.
The boss battles were slow and stagnant. When you hit them, almost none of their health is gone and you just follow the same pattern of hit, hit, hit, duck. The stick of butter did something extra when he was about to die, but the octopus didn't. The final boss was also very easy to kill.
Overall, it's a good game. But If you decide to make a sequel, you should just work on the little problems you've got.