Love the concept! Love the checkpoints. Love the way the scaling works. Fits the theme perfectly.
It's a little dizzying when the scale suddenly jumps up faster than normal, but I got used to it fairly easily. Could use a tiny bit of Coyote Time when falling off ledges, as it's not super clear where the hitbox for the bunny's sprite is. Also the music gets a bit repetetive, although it's totally appropriate for the cutsy style. But other than those minor niggles, it's great!