I really like that the game is playable on browser. The idea is okay but the game was really buggy. I was unable to keep the character on the platform, even when simply moving forward. He kept jumping off.
Also, the controls didn't work very well. If you go forward while going upwards and then you let go one of both directions, the platform continues to follow both. It's not well explained but if you don't understand I can try to explain again.
The art is super cool, I didn't hear any music.
Well done ! It's a good submission !