Hi dracula,

I would not use panels because they would not create the collisions with walls.
Use a simple sphere as body.

In fact, this game would be a 3D game seen from above (like a bird looking down). Because the camera is so high, that it can see the whole level, it looks like a 2D game.

Try to make your game without the snake (only the head) and let it eat all things in the area.

Once you get this done, I can help you if you don't understand to use my previos post.

-- slacer