The Numeron Code (ヌメロンコード, Numeron Kōdo) is a powerful card which created all of reality in the Yu-Gi-Oh! ZEXAL anime. It has records of everything in the universe and has the power to decide the fate of all reality.
The code was created as the result of a tear shed by the dragon that created the universe impacting with Earth. This also created the moon, where the key to the Code ended up. The correlation between these events was inscribed on a tablet.
Finding the Code is the primary objective of both Barian and Astral Worlds. Each aims to find the Code in order to destroy the other. Astral knew where the Code was prior to going to Earth, but upon arriving his memories were scattered in the form of the Numbers. Since finding all of the Numbers would reveal the location of the Code within Astral's memories, both him and Barian world set to collect the "Numbers" before the other side do.
As seven specific "Numbers" hidden within ruins can aide in finding the Code without obtaining all of the Numbers. In addition, the tablet details that the two "Galaxy-Eyes" dragons must meet on the Moon and battle. The victor will be awarded the key to the Code.
After Yuma Tsukumo and Astral's Duel with Shadow Giant where The Door allowed Yuma Tsukumo and Astral to access more of Astral's memories, they learned that Astral's original mission was to find the Numeron Code - the "God Card" that created the world and can decide fate. He must find it before the Barians do. He also learned that the location of the code was hidden in the memories of the 7 Mythyrian "Numbers" he has yet to collect. Astral intends to use it in order to find the locations of uncollected "Number" cards.
The Code is shown to be a card that swirls around into different forms in Astral's memories. Inside it is how the world developed and where it is heading to. The "Numeron" archetype is related to the Code and emulates its powers.
Once Astral obtained all of the "Numbers" he quickly found the Numeron Code intending to carry his mission of destroying Barian world, but Yuma protested against Astral using it for more destruction. Astral challenged Yuma to a final duel to settle how the Code will be used.
After his last Duel with Yuma, Astral finally obtained access to the Numeron Code and used its powers to revive Kite Tenjo, the Seven Barian Emperors (which they were returned back into humans once more), Ponta and Eliphas in order to restore peace to Earth. According to Eliphas, Astral fused Barian World and Astral World using the reality warping artifact. This also allowed Chaos to return, causing upcoming challenges to take place.
- ↑ 1.0 1.1 1.2 Yu-Gi-Oh! ZEXAL episode 133: "Vector the Victor"
- ↑ 2.0 2.1 2.2 Yu-Gi-Oh! ZEXAL episode 121: "Mission: Astral World, Part 4"
- ↑ Yu-Gi-Oh! ZEXAL episode 74: "Attack of the Barians: Part 1"
- ↑ Yu-Gi-Oh! ZEXAL episode 89: "Darkness Dawns"
- ↑ Yu-Gi-Oh! ZEXAL episode 98: "Shadows End"
- ↑ Yu-Gi-Oh! ZEXAL episode 138: "The New World"
- ↑ Yu-Gi-Oh! ZEXAL episode 144: "Last First Duel"
- ↑ 8.0 8.1 8.2 Yu-Gi-Oh! ZEXAL episode 146: "Forever ZEXAL"