Robokikki

Robokikki are a deviation of Monchee patrolling Twilight City and Twilight City Plus in Mario vs. Donkey Kong. They have a more exoskeletal appearance, have black eyes and electrical antennae, move on red gears, and lack arms. They have nearly the same behavior and purpose as their counterparts, except they move at a more aggressive speed.

Reference
Monchee meccanico