I finished it in about 20 seconds. I mean, it's a series of jumps, and if I'm not mistaken you have even added coyote time. But it's definitely too short, even for a game jam, I think you should have at least double the amount of platforms.

I can see what you're aiming at here, and the game's aesthetic looked quite appropriate for the competition, but the controls need a lot of work, I'm afraid. It's not possible to jump through platforms, which is a reasonable choice to make, but the screen seems very glitchy and the jumps require pixel perfection or they fail; all of these combined means that I could hardly get above the third or fourth platform, which made the game not fun to play. I think that some tweaks to the controls could completely change that; how a character feels to control is really important to how the game feels to play, and with some work on that I can imagine this game could be dramatically improved.

The character was slow and barely jumped, and the platforms had weird hitboxes that made me fall a lot. Made it unenjoyable, however the constant falling down made me want to complete it even more.

If you put these controls into a getting-over-it type game it would work pretty effectively.