Cute!
I think the ghost cat should have gotten faster as you got upgrades. The upper path is completely flat, while the lower one is pretty treacherous, so as soon as I got my first upgrade (jump), it was completely overpowered.
As someone said, adding collectibles could be nice, it would give the player some incentive to take a slower path to get a reward, at the risk of getting caught by the cat.
I enjoyed it nonetheless.
I hope the orange cat is not haunted, now ;)