PlaneSnake: Mobius

Imagine you're a cube. Now you're a snake. And you're inching up the side of an invisible prison, able to see the Irish countryside outside of your cage, but there's something not quite right...

Now you see it. A yellow block. A block of what? A block of yellow. You don't know why, but you approach, cautiously, moving at right angles to avoid incoming fire. But where's the fire? There is no fire. There is only the yellow.

And you reach it. It fills you with joy, but it also fills you with desire. And as you consume it, so does it consume you. And you lengthen, but so does your quest lengthen. Your quest for more yellow blocks. And the only thing that will block you from them...

Is yourself.