vehicles. The player can fully repair Jehuty by collecting Metatron, and save their progress at the beginning of each stage. The player can level up by destroying enemies, and collects "sub-weapons" by defeating bosses. Depending on the player's storyline progress, the capabilities of Jehuty can change. After certain missions, the player's performance is ranked with a letter rating; the entire game is given a score as well. The player can unlock "Extra Missions" during the course of the game, as well as replaying the game with any incarnation of Jehuty. The game also includes a single- and multiplayer versus mode. Zone of the Enders: The 2nd Runner also includes an unlockable 3D remake of the original Gradius arcade video game called Zoradius. In Zoradius, the player uses the Vic Viper in fighter mode, flying through a tunnel and shooting down various non-humanoid enemies from the game to gather powerups to increase the Viper's firepower and shields. Roughly halfway through the stage, the player has to fight through an area full of ring-shooting Moai heads, also a staple of the Gradius series. The game ends in a Boss fight against the Train boss, also from the main game. The music and sound effects used in Zoradius are taken from the first Gradius arcade game, composed by Miki Higashino. Plot The game is set in the year 2174, two years after the events of Zone of the Enders. It follows Dingo Egret, a miner working on Callisto. He inadvertently discovers the Orbital Frame, Jehuty, hidden. When he is attacked by BAHRAM forces who have come to seize it, Dingo climbs into Jehuty and engages the attackers, which include a female Orbital Frame runner named Ken Marinaris. During the battle, Dingo enters the BAHRAM battleship, seemingly defeating Nephtis, an Orbital Frame controlled by an AI program based on Viola's fighting style, but is subdued by Anubis, Jehuty's superior counterpart controlled by Col. Ridley "Nohman" Hardiman, leader of BAHRAM. Nohman requests Dingo to join him once again. When Dingo refuses as his comrades were sacrificed by Nohman years ago, Nohman shoots him and leaves him to die. However, Ken has Dingo revived and placed inside Jehuty. As Jehuty is acting as a life-support system, if Dingo leaves Jehuty, he will die. She then tells him that she is a UNSF spy, working undercover and needs Dingo's help. Helped by Ken, Dingo escapes the battleship