This boss is a large, sand-dwelling machine that pops out of the quicksand. It attacks by firing sand projectiles and occasionally charging across the screen. The arena is a quicksand pit with small platforms.

- Phase 1: The machine emerges from the sand, fires projectiles, and then submerges.
- Sonic Strategy: When the machine emerges, jump and Spin Attack its head. Be quick, as it will submerge again. Use your speed to avoid the sand projectiles and stay on the platforms to avoid sinking in the quicksand.
- Knuckles Strategy: Knuckles can glide towards the head when it emerges, delivering a punch. His glide can also help him quickly move between platforms to avoid the quicksand.
- Weakness: The head of the sand worm machine.
- Reward: Clear Act 1, proceed to Act 2.