The red calves are not a bug or error. We designed the character like that on purpose. The calves turn red to show how much power the Hun puts into his jumps, yeah it's a silly idea but make us laugh and we decided to make it real.
We thought about implementing checkpoints at some point but the game it's 40 second long, if you practice enough, so we abort the idea and make the carpet platform instead to make the player breath from one floor to another.
Thank you for playing our game and for the feedbacks!