The Lockjaw is a defense mechanism used by Sylux. Like the rogue hunter's Power Suit, it is a prototype technology stolen from the Galactic Federation. It resembles two long cobalt blades molded around a green energy sphere, very similar to the Morph Ball used by Samus Aran. The Lockjaw possesses a cunning weapons system that lays up to three energy mines connected by explosive trip wire. If a careless victim touches the wire, the mines detonate simultaneously, making them perfect traps in tight spaces. Sylux can also detonate the mines remotely.
- Metroid Prime Hunters (First appearance)