Metabolism is one of the better variations of snake.  I figured it would be a bit too challenging for the snake's tail to progressively get longer, so it doesn't.  What does add difficulty, however, is that for each piece of fruit you eat, you leave waste behind you which stays there for the rest of the game.  Your waste is as deadly as the walls:  You touch either, you lose.

Use the arrow keys to move.  To keep the game good and fast, you are quite able to go backwards into yourself, which will kill you plenty.  Pressing any button other that the arrow keys ends the game as well.  Post any glitches you find in a review.
