I'm not sure the first level is beatable haha, granted I am not very good at platformers. The theme tie in is pretty fun and makes it pretty difficult. Music and art style are nice and clean. A few suggestions:
- Start the game out a bit easier - I played for ~10 minutes and I still couldn't get past the first level, not sure what I'm doing wrong on jump timing.
- Add a lives feature instead of dying and going back to the main menu - it would make the game feel a bit more intense once you're at 1 life left. It saves a bit of clicking if you suck like me lol.
Good job!
re: aspect ratio, it looked good on my machine, I'm sure there are some settings you can tweak to help support different window sizes