Its an alright game, (ignore this part if ur a begginer game dev)its a very easy game to make so it kinda lacks some stuff to do, it gets boring very fast. Also it doesnt fit the theme that much.
Yes, you are right the game lacks content because it was made in 4 hours due to bad time management. Other than that I actually think it fits the theme very well because you play both sides of the snake. ^^