Spinning Hexagons

Spinning Hexagons are an obstacle exclusive to Checkpoint 8. They have two hexagons, one bigger and one smaller, spinning towards you and from side to side, respectively. The metal is also dangerous. They have Pyramids or Octahedrons beside them, sitting on pedestals.

It was also seen in a early development idea for checkpoint 10 (with a laser, seen below on twitter), but that was scrapped before the checkpoint being added.