The puzzles were definitely not easy to solve but also not too hard that they posed a challenge that would have you sit there for 20 minutes achieving nothing. The art style was also really good and the concept was fun and different but still keeping that original snake feeling.
The lack of music or any in game sounds really is what dropped it down a notch for me, I believe it would add to the fun of the game with sound effects for your snake eating a chilli, switching to the next puzzle, bgm, etc.
Overall the game is a solid 8/10 with everything considered.