The Tristan (トリスタン, Torisutan?), named after Sir Tristan of the Knights of the Round Table, is a custom eighth-generation Knightmare Frame[5] piloted by the Knight of Three, Gino Weinberg. It is the first transforming Knightmare Frame introduced in the series, able to switch between humanoid and jet forms.[37] It is very maneuverable, able to fold out and transform in mid-air. It can utilize a pair of machine guns in its jet form. It has two large Slash Harkens mounted on its forearms, which are equipped with Harken Boosters. The two Slash Harkens can combine to fire an energy blast, powerful enough to effectively match the Shen Hu's Baryon Cannon. When in humanoid form, it can wield two pickaxe-like Maser Vibrations Swords called the MVS Polearm, which can be joined together at the hilts to form a single, double-edged scythe. The Tristan is heavily damaged during a battle with the Lancelot Albion.
