This game is fresher than a Snapple, do you remember Snapple? It was in tight competition with Lipton Brisk. This game is brisker than a cute animal wielding a bazooka, who must be brisk lest he take too much risk.
We've already established that retro is a sort of cancerous fetish and/or celebratory exercise in practical limitations, it's one or the other, or both. We've seen retro sweep over the platformer genre like a plague of locusts, devouring every possible variation on physics, level design, goal-orientation, character development, and aesthetic. The term Metroidvania has been viciously defiled, mutilated strung upside down in a mock crucifixion. Now Zelda-style games are being descended upon, we can only expect a skeleton to remain in the wake. But for now, it's time to feast!
Mr. Kitty takes a lighter approach than something like Saturated Dreamers, but it's still ebullient in its pacing, occasional secrets, and fusion of the exploration motif with more modern conventions of control, pacing, and free-directional movement. There are only a few power-ups that enable you to proceed to new areas, and thus, only a few areas, but it's more of a snack to prepare you for the ritual immolation of yet another retro-genre at the hands of extremely talented people whose games are so good they make the genre completely turned out and exhausted, as a good lover should.