• Jaden/Yubel requires red keys to duel at the gate.
• Jaden/Yubel appears at the gate at Stage 10 (GX)

• Reach Stage 10 in (GX) Duel World. To trigger his unlock missions
• Successfuly perform 1 Fusion Summon(s) in Duels against Jaden Yuki at level 30 while playing as Yubel.
• Recover 3000 or more LP in one Duel against Yubel.
• Use a Spell Card 5 time(s) in one Duel against Yubel.
• Summon Yubel - Terror Incarnate 1 time(s) while playing as Yubel, in a Duel against Jaden Yuki at level 30.
• Summon Yubel - The Ultimate Nightmare 1 time(s) while playing as Yubel, in a Duel against Jaden Yuki at level 30.

Strategy

• Use Fire King Avatar Yaksha or Disciple of Nephthys / Defender of Nephthys to destroy Yubel and summon Yubel - Terror Incarnate
• Use My Name is Yubel and Sangan to make sure Yubel is in your hand.
• Cycle through your deck with Nephthys monsters and Sangan
• Save three high level monsters for the last turn.

Last Turn

• Summon Montage Dragon with 10,000 or more ATK by discarding your high level Yubel Monsters
• Use Shien's Spy on your Montage Dragon to give it to Jaden/Yubel.
• Use Exile of the Wicked to destroy your Terror Incarnate to summon Yubel - The Ultimate Nightmare
• Attack your Montage Dragon with Ultimate Nightmare, dealing 10,000 effect damage.

Jaden/Yubel will fill the board with random Neo-Spacians twice at the start of the Duel

Jaden/Yubel will fill the board with random Neo-Spacians twice at the start of the Duel