Really cool game with really cool art ! It is way too difficult when you encounter 3 foxes in a zigzag, I couldn't get past that part. Actually I could but it was because I found a bug that allow you to do a super jump and I bypassed that section of the game. To do the superjump you have to be next to a corner, some corner seem buggy (around where the box is) because you can just run and the hunter 'jumps' automatically, but for the general case you spam spacebar when you reach the top corner (if you are on the left and you have a single block on your right, you run toward that block, you jump, you land on the top-left corner and you spam spacebar)
here -> ._ _ _ |
_ _ _ | | _ _ _ _ _ _ |