you get killed by the enemies and sawblades on touch but not when big, this isnt immediately obvious so its a little counter intuitive when you need to use that for the double sawblades part
aditionally at this point the player understands that they are safe from enemies and saws when big, and you immediately subvert that with the red sawblades that kill you when big, it's a pretty jarring change when suddenly what youve come to rely on doesnt work and at first i thought it was a bug so i kept trying to tank the red saws
but overall i think its fine as a gamejam project, but if you were to go for a full release, i would reccomend to teach the player these things more explicitely
but i dont think this takes anything away from the overall quality of your game, it was very fun
great game