![armor camera camera_eyes commentary cyclops_(girls_frontline) emblem girls_frontline grey_background gun highres holding holding_shield holding_weapon kcco_(girls_frontline) no_humans rampart1028 robot shield shotgun simple_background solo upper_body weapon rating:s score:8 post #3849843](/cdn_image/preview/ae/dc/aedcbe4a94e9848a073731d23e178a27.jpg)
For danbooru purposes, a robot is an autonomous mechanical or electronic machine. This tag is essentially an "other" category for robots.
There is little consensus on which machines qualify as robots, but for tagging, use the following guidelines (in order of importance):
For the Nuclear Throne character see robot (nuclear throne).