I really like how you implemented the economy, the coyote time, and the hold-to-jump mechanic. The physics are great! The only thing is that having all the coins appear in the same spot is a bit boring. Other than that, great game and good job!
Thanks, the coins appearing on the left is intentional for now but you are right that it could be boring and there could be potential to significantly improve upon this in some way.
Really appreciate your feedback, and I liked your game - nice job on it!