Metal long legs, which would have 3 stages that have different chances of spawning, 1. 25 hp and is able the bury itself in the ground, slow,deaf, and blind, but can sense movement(kinda similar to the current hearing mechanic but different) 2. 80 hp except they are covered in random scrap metal on parts of their body that deflect thrown objects, they are blind but can hear extremely well and are decently fast. 3 2000hp as big as terror long legs can grab all thrown projectiles and mostly covered in higher quality metals,they have cameras which allow them to see except they are extremely slow(btw you aren't meant to kill them just run).