Like that the control scheme being integrated into the 3D environment. Music is zany and really sets the mood right away, and the purplish-pastely art style matches the fun tone.
A game like this does need to be third-person to work, since the player can't get a sense of where they are (even if they have the camera pointing down, which I started doing very quickly). So I often found myself falling into the death zone even though I thought I was hitting the platforms correctly. Alternatively, maybe expanding the collision boxes to make them more generous in catching the player could help.
The restart checkpoint during this gap was a bit too unforgiving, so capped my playthrough there (do feel strongly that the checkpoint should be whatever platform you were on last). But I really liked the vibe of this entry. With some more refinement, this could be a thriller!