Very interesting concept with rather good execution.
Main nitpicks are the lack of any audio (but, that said, might be a bit difficult to find some audio that’ll fully fit the vibe of the game), the lack of a real win/lose condition, and the fact that the shapeshifting just pauses whilst holding space.
For the latter point, the lack of shapeshifting upon holding pause pretty much removes all challenge from the game (as one can just hold space as soon as it’s safe to do so and then keep on holding space to score infinite points), and provides some very unpleasant ludonarrative dissonance (lore says ‘you can’t control your ability’ but the game gives you control over it).
Still, pretty good game!