Not bad, a fun little project. The movement is smooth and satisfying, and the abilities are creative. I really like the golden sand concept as you have it. I had fun. Especially when I realized how OP the superdash was, and did a run through while time was stopped the entire time.
I would recommend adding some pictures to the Itch page so it looks more legitimate. (Luckily, that's even something you can do after the grace period.)