After I get the double jump i get stuck, the platform above the checkpoint lets you fall straight through it, not sure if that was where i was meant to go, also there is quite a long delay after releasing arrow key before you stop moving that feels a bit awkward and makes me fall off the edges quite a lot. Like the style and the idea though.
Hi! Thanks for the comment! Falling through that platform is intended, so the player fall on the checkpoint and go through the way to get the double jump boots. After getting it, you can double-jump directly to the platform with the enemy. =]