The game has a very nice look to it. For the most part it felt good. There were a couple of things that I think it would benefit from. I ran into a jump issue where I barely stepped off the ledge and the jump failed. That is something solved with Coyote time. Then I agree with Carlos E. Perez that the jump seemed a bit floaty. Here is a link to a video on how to make a jump feel great: Mario Jump. All in all, I liked your game, I think you have a great start to a game.