Good boss fight game. The controls felt a little strange to me. I always wanted to dash with the spacebar, but that's just my own skill.
I really liked the cat's skill set; it forces you to react and think when to attack. I wish the platforms were a little lower or that you could jump a little further to reach them without the dash. I understand it's a mechanic, but it would make me more comfortable fighting him that way.
Congratulations on the game. While I couldn't beat it (a skilful issue), I had a great time playing it.