That is a fun game, great music! I love the concept of mixing the classic snake type game with enemies to avoid. I think it could help add depth to gameplay if the snake grew in length when you eat an apple like in the original game. This also gives another reason to eat the fruit while increasing the difficulty because you have more body segments to protect.
It would be nice to see some more frames of animation for the graphics and some texture on the snake. I also had an idea that it could be fun if there was a powerup that allowed the snake to eat the mongooses like pac man. I hope you continue working on it!