That's a good point. We initially wanted to introduce the controls with a tutorial but we ran out of time. We've added some small animations to the next version (you can see them in the game page) to guide the player more near the beginning.
As for the dash, we wanted to introduce it intuitively but I don't think it ended up as easy to understand as we'd hoped. The messed up dash button hitboxes don't help either 😅
Something we changed for the next version is only displaying the "normal" controls up to the dash level. In the first dash level, we only allow the right dash to be bound, and all the dashes "unlock" after that.