Deployed to the 16th Autonomous Mobile Squadron and assigned to the Pegasus-class warship, the Thoroughbred, the RX-78-5 Gundam G05 was designed for space combat. As such, the RX-78-5 was able to be outfitted with a booster system that extended its effective range and operating time. Due to its late introduction in the One Year War, the RX-78-5 saw little extended action - however, it was deployed to protect Zeon Prime Minister Darcia Bakharov from Zabi loyalists at the end of the war. In an animated clip, after the RX-78-4 was damaged, its coolant was removed and installed onto the RX-78-5, along with some other parts. The RX-78-5 remained in service until the battle of A Bao A Qu. After the Zeon surrender, the RX-78-5 was returning to its mother ship. Unfortunately, the pilot did not notice a damaged Gelgoog was hidden in the rubble and the RX-78-5 was destroyed by the Gelgoog, sniped through the back with its beam rifle. First appear as part of Kunio Okawara's MS Collection original design series, design by Kunio Okawara. The design was updated to be use in Mobile Suit Gundam: Encounters In Space video games by Hajime Katoki.