The 'Artemis' is a guard guinoid patrolling around the outer walls of the fortress. It vaporises approaching unidentified forces from a distance with a plasma cannon on its right shoulder. Its right arm is a large-calibre rifle (live ammunition) and grenade that ejects bullets by electromagnetic guidance (in essence, a railgun), while its left arm is a laser that can be irradiated for long periods of time, and both have shields on their sides to protect them from enemy attacks. The left shoulder is equipped with a generator to compensate for the enormous energy consumption, and a low-gravity device extending from the waist weakens the surrounding gravity, so movement is easy.

要塞の外壁周辺を巡回する警護用ガイノイド、「アルテミス」です。接近する未確認勢力を右肩のプラズマキャノンで遠距離から蒸発させます。 右腕は電磁誘導（要はレールガン）で弾を射出する大口径ライフル（実弾）とグレネード、左腕は長時間照射可能なレーザーで、どちらも側面が盾になっているので敵の攻撃を防げます。 左肩には膨大なエネルギー消費を補う為の発電機を装備、腰から伸びる低重力装置で周囲の重力を弱くしているので移動は楽々。