Clank (Ratchet and Clank)
Golurk (Pokemon)*/Air Man (Mega Man)
Mega Man (Mega Man)
Protoman (Mega Man)
Sektor (Mortal Kombat)
Golurk confuses me. It seems like it could be either a robot or a construct. Either way, I have a replacement in case it doesn't count.
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HK-47: The very best there is when you absolutely positively have to kill every meatbag in the room. Accept no substitutes!