The RX-0 Unicorn Gundam (ユニコーン ガンダム Yunikōn Gandamu?, or Unicorn Gundam, Unicorn, RX-0) is the titular prototype mobile suit of the Mobile Suit Gundam Unicorn novel, its OVA adaptation and the television re-cut. Developed by Anaheim Electronics for the Earth Federation, the machine concealed a secret that could shake the future of all humanity, for it was the key to opening Laplace's Box. The suit is piloted by Banagher Links after the head of the Vist Foundation and his father, Cardeas Vist, entrusted it to him at the dawn of the Third Neo Zeon War in U.C. 0096.

Technology & Combat Characteristics
Produced as the final part of the E.F.S.F's reorganization plan, the "UC Project ", the Unicorn Gundam is a revolutionary design and was meant to be the main symbol of the "U.C. project's" main goal: to destroy any traces of Zeonism in the Earth Sphere, and thus not only does it feature a Gundam design, but it also incorporates an anti-Newtype system. Two prototype machines were completed at Anaheim Electronics' factory in Granada. However, when the Vist Foundation took control of the project, they turned the Gundam into a symbol of possibility by making it the key to finding Laplace's Box: the embodied hope of the Universal Century. Featuring the most advanced mobile suit technology of the time, the machine's performance is unmatched.