Thanks, I'm glad you enjoyed it.
I don't think it's possible to get all the coins though. Sorry, that's my mistake. I was mainly focused on the character controls and overall feel.
Thanks for playing and thanks so much for the feedback. I'm glad you liked the controls.
As for the bugs, the mid air jump after leaving a ledge is actually intended. Implementing "coyote time" for the jump seemed like a fun challenge so I decided to give it a go.
The spike damage is something I could take a look at though. Is there more information you could give me or a way to reproduce this issue? (if you have a screenshot or a clip of it that would also be super helpful)