I think this has a lot of potential.
I would love to be able to not just scale but also rotate. Maybe add some puzzles which make use of the scaling on the X and Y axis. For example, the weight of the caterpillar could change depending on the thickness, dipping the leaves in water if it gets too heavy but certain pickups can only be picked up while being large. The Y scaling could be used to "leap" over and go under obstacles.
Really impressive for a solo dev in 48 hours.