Zero

Episode 1
Sonic and Shadow are wounded after getting defeated by an Assassin. Zero and Megaman X bring the two hedgehogs to safety and heal their wounds. Sonic's body is very damaged, therefore Megaman X and Zero give him a new body. Megaman X and Zero introduce themselves to Sonic and Shadow and tell them that they must go to Hyrule to find the Stone of Chaos.

Episode 2
In this episode the group reaches Hyrule. Here they meet Zepiroth, who is soon defeated by a Giant Mecha Sonic. Megaman X brings Zepiroth to safety while Zero, Sonic and Shadow stay to fight the Giant Mecha Sonic. The trio is nearly defeated by the robot, but they manage to destroy it with a powerful team attack. After this the trio reaches Megaman X and Zepiroth, and Megaman X heals their wounds. Zepiroth tells them that they that in order to find the Stone of Chaos they must have the Triforce and know the names of four legendary heroes. The group reaches Hyrule city and here discover the names of the four legendary heroes. They then proceed to meet Link, the holder of the Triforce. With the Triforce and the names of the four legendary heroes, the group opens the Temple of Time to reach the Stone of Chaos.

Episode 3
Inside the temple, Sonic finds the Stone of Chaos, but Aeon and Bass arrive to take it from him. Sonic refuses to give them the Stone of Chaos and so Aeon and Bass leave, letting the True Guardian attack Sonic. Zero and the rest of the group take Link to safety, after he gets knocked out by Bass and Aeon.