Shame on me for rating and not leaving a comment.
This is very very impressive in the amount of time you had available to pull it off, so first of all, congrats on this amazing participation!
I wouldn't in a million years thought of implementing a snake-like game in a Tamagotchi theme, so kudos on the innovation side. The controls also took a minute to settle in but once I figured them out, I found myself having lot's of fun driving around.
It does seem like the player is punished for trying to explore further, did a couple trips to the edge of the map only to find myself come back empty-handed, but I'm sure this is nothing you won't be able to fix on the next version if you decide to work on it a bit more.
All in all, I'm impressed! Nice work!