This is a really cool interpretation! I like that you can sacrifice your size for more movement.
I got really stuck on the third screen I believe, where you need to dash upwards. If you're going to continue to work on the game I'd put another tutorial image on that screen just like the one where you first get the dash, only showing it going up!
It turns out I wasn't playing in full screen so this is more of a me problem, but I was also confused when I hit my first button, I waited quite a while for something to happen not realizing you had to walk left. It seemed like I had all the info, but the gates were cut off. I think When you hit a button I would also pan the camera to the left a little bit to really sell that's the way to go.
Awesome job!