I love the mechanics, being able to change size to navigate between platforms and foes is "common", until I realized you can only change size a certain amount of time. Then it was more a matter of "will I risk to navigate blind and vulnerable as a tiny blob all the time, or will I risk to use my few transforms available to see further and stronger ?"
(i played the whole game as tiny XD)
It is small decision making mechanics but it changed the game from "ok" to "cool".
Great Job !