So some parts of the tutorial I couldn't read, as some text were off screen (especially on level two).
How do I even shapeshift back to a circle? Because I had to restart the game and play level two as a circle, even though the tutorial seemed to encourage me to play as a square. There doesn't seem to be much benefit playing as a circle, other than exiting through doors that can be only be entered if you're that shape.
This does seem fun; I just think your tutorial (or introduction) needs a bit more polishing.