I really liked the idea, after all, who doesn't like kittens? ^^
The soundtrack is very interesting, and the game is very fun. Some levels reminded me of Fall Guys, a game that I've seen a lot of people play, and your game has just as much appeal.
I confess that sometimes the colors end up confusing with the background. A cool idea would be if the kitten model was a sprite instead of a model, so it would have a more interesting highlight with the scenario, like the collectibles.
A very great idea would be to explore the movement of the scene as in Monkey Ball, it would have a beautiful dynamism, and even with the colors, it would be incredible.