An interesting twist on classic snake by having the player get smaller from collecting fruit. The twist at the end where you play as the fruit is a cool idea.
The level where you play as the snake should be a bit longer as it’s pretty quick and easy. Maybe more hazards to avoid so the player would have more incentive to get smaller and avoid said hazards. The fruit and boss part at the end is much too difficult as the boss comes on the screen too fast. Something such as a visual warning on where he is going to appear would help a lot with that section.
Overall, an interesting twist on a classic game. Nice job!