Nice addition to the "snake-likes" a genere which I decided esists now :D
I love the cute graphics and the fitting sfx and music. Very chilled out puzzle game. I see some potential here. I played about 4-6 Levels and other than the "your worm has to cover all this tiles" purple thingy no other new mechanics were introduced (so far - as said I did not play to the end)
I think if you add 2 or 3 more mechanics (like doors which can only be opened from one side, Boxes you can push?) to create some variety, You could generate lots of Levels :D
I really like it!