Thanks for the feedback! We talked about the bug on our itch.io page, if you dash on 6 or 5 hp you get totally invulnerable we're sorry :(
When you get lower than 6 hp you unlock faster and longer dash and double jump, so if you enter in the bug invulnerability you can't even get to higher platforms :(
We really suggest you to try the game again and don't dash until you're lower than 5 hp as it gets really frenetic and funny! Sorry for the inconvenience <3