If your curious how the snake brain works. It will always seek out the food in the order it was spawned BUT if it has direct line of sight of any food, including the player it will rush towards it.
So the intended gameplay was to grow the snake and make it bite it's tail by flaunting yourself behind one of it's segments.
Originally I wanted this to be in the Tutorial, but I forgot to put it in. :(
Agreed with the movement - it's my biggest gripe with the game. :/