What an interesting concept! At first I couldn't figure out why "you got stuck" is different from the win condition, as I thought I just had to close the loop, not catch specifically the last body segment. Also I wish the map showed a grid, as I often missed my chance to turn because I thought the tile extended further - being able to see exact edges would have saved me some frustration.
Btw, I'd be happy if you left some feedback on our game as well!