Hey, I know these resources (I saw Brackeys using it in some tutorials) hahaha
I liked the game, but I didn't find the enemy :(
Regarding the gameplay, I think the fox floats a little too much and I found a movement problem (in my opinion). When you jump while touching a platform in front of you, the fox's jump is lower than when you jump freely without touching anything. This is normal? Another point is when you move quickly in and out of a floating platform: the Fox appears to fall, but when you press the move button towards the platform, the Fox moves up the platform again.
Despite these points, I think you used free resources wonderfully to do a small training project. I need to do more things like that.
Congratulations!