- Hell Buzzsaw is a Planet X agent from the Cybertron portion of the Unicron Trilogy continuity family.
Partnered with the cruel Soundblaster, Hell Buzzsaw works to destabilize Autobot and Decepticon alike for his dark master Unicron. It is assumed, but unconfirmed, that Hell Buzzsaw is merely an expendable drone-unit of limited intelligence like the others of his model.
- Soundblaster (Voyager class, 2006)
- A redeco of the Soundwave bird-partner Laserbeak, Hell Buzzsaw transforms from a hexagonal "bomb" into a robotic bird. In bomb mode, it can store in Soundblaster's chest compartment, or under its wings. In bird mode, it can perch on the tips of Soundblaster's wings, or on its right forearm. It was only available with Soundblaster, who was a "Toys Dream Project" mail-away exclusive.
- This mold was also used to make Blockrock.