The reasoning behind this game is incredibly touching. I can see how much it meant to you from the detail and polish you put into it. We were shocked by the amount of detail you put into this game! The sounds effects, visuals and game feel are all great! The balloons sounded amazing. The snake itself is so well made, I love how the snake visuals change when you eat an egg. I was pleased that you made so many levels and kept adding new mechanics and obstacles.
Here is a suggestion: If you were to separate the balloon creation to another button, then you can have balloons work on things other than the snake and this can be very interesting as a game mechanic for more elaborate level design. Something like this: https://www.youtube.com/watch?v=fGHlFZUOb78