Basically a very choppy version of Super Meat Boy. No thanks. I knew this game was going to be a challenge to control when I couldn't go in the first door because of how "floaty" the running is.
So... I do like the visuals. And if the game were able to be controlled better, it would be fun. However, currently, the games has more problems than it should. I understand that you made this in a month, and it's not bad for a game with so little work put into it (As most people work on games like these for far longer).
However, the game engine needs a LOT of work. Assuming you were going for a Super Meat Boy style, you first need to work on making the controls more fluid and the frames less choppy. Currently, the game is next to unplayable because the game seems to have an ice physics mechanic and it doesn't work. It would be one thing if the levels were designed to be ice levels, but currently, the controls just don't work as is. There is also an increase in choppiness every time you jump which immediately makes jumping a chore.
This game would be more fun if it were more fluid and controlled better.
I also noticed that the game doesn't save. That's a big issue especially if the game crashes like it did for me. The crashing I assume was just my browser being overloaded because games like these slow down my browser considerably, but having to start over every time the game is loaded just doesn't work.
Honestly, this game should have had far more work put into it before releasing it. Currently it's just a game where you play a few levels and then you end up quitting when the game gets difficult because you can't handle the controls.