Two-dimensional schematic
The game is about the player move forward, so that is the ground chunk, may be one chunk has a random gear(like a laser or box let the player to slide shovel or jump) and I can reuse the ground chunk.
So the highlight wave of the chunk must can one by one light up, when get in the boss ground chunk, the highlight color may be change to red and speed up, I think this is very nice for the game atmosphere.