SO TRIPPY AND FUN! That music got me hypnotized. Shooting cats was hilarious. There's really some recursive cat/food chains going on here.
The graphics were so clean, and the gameplay was tight and genuinely fun. That freakin cat is always just another minute away though! I tried 4 times but kept falling off ledges-- I feel like I almost had it the last time though. Is the twist that the cat eats you in the end? I was sad to leave him hungry.
One random tip: I made a game similar to this once in terms of perspective and aiming. I noticed sometimes when the character is running, if there's no object to raycast to under the mouse, the character ends up looking in weird directions. The way I fixed this in my game was to default the "aim ball" to a plane normal to the "up" axis that moves with the player, and only attach the "aim ball" to the object under pointer raycast if there was something targetable under it.