Thanks for your feedback! I really wanted to make everything feel as retro in the game design as possible. I've actually not seen anyone clear World 2 yet. There is an ending if anyone can clear world 3 but I have no idea if anyone will.
I'm happy because I just finally managed to clear World 2 for the first time while as the time passed I was starting to think I would not manage to before the end of the jam.
Now completing the game will require at least a couple of extra sessions. ;)