• Bonz requires yellow keys to duel at the gate
• Bonz appears at the gate at stage 13 (DM)
• Bonz level 40 appears at the gate upon reaching stage 30
• Bonz himself is a useful character to have, with skills like Restart and Straight to the Grave

• Reach Stage 13 (DM) Duel World. To trigger his unlock missions
• Achieve 1 Comeback Victory(ies) in Duels against Bonz at level 30 using Joey Wheeler.
• Win 1 Duels within 6 turn(s) against Bonz at level 30 while playing as Bandit Keith.
• Achieve 1 No Damage Win(s) in Duels against Bonz at level 30 using Yami Bakura.
• Collect 3 Zombie-Type Cards.
• Achieve 3 win(s) using only Zombie-Type Cards.

Startegy

• Have 1 trap set (not 2, because of Xing Zhen Hu) behind Labyrinth Wall to counteract Bonz's Tribute to The Doomed. With 5 traps you have a good chance of opening with 1. You may want to stall on summoning wall with your skill until you have a trap.
• Earthshattering Event, Pot of Benevolence, and Shard of Greed are used to counteract Bonz milling through the effect of Gozuki. Prioritize Skull Servant to return to the deck. Don't play the second Earthshattering Event until you use one of your traps & the first is destroyed.

Last Turn

• Use Shield & Sword
• Special summon The Fiend Megacyber
• Summon Gravekeeper's Vassal
• Use Secret Pass to the Treasures and both Union Attacks on Vassal
• Attack directly for 9999+ damage

Replacements

• If you only have 1 Union Attack replace the 2nd with Spell Reclamation
• Shard of Greed can be replaced with other deck thinning like Jar of Greed, Good Goblin Housekeeping, Thunder Dragon, etc.

Startegy

• Summon Hazy Flame Sphynx using Dynatherium/Hazy Glory. You can also Normal Summon Hazy Flame Cerbereus with his effect.
• Use Hazy Flame Sphynx to send unnecessary cards to the Graveyard and Special Summon more Hazy monsters so you can boost your Hazy Flame Sphynx with Beast Rising.
• Make sure that you don't activate Sphynx's effect to discard your Gravekeeper's Vassal, Union Attack, and Secret Pass to the Treasures.

Last Turn

• Summon Gravekeeper's Vassal
• Use Secret Pass to the Treasures and Union Attacks on Vassal
• Attack directly for 9999+ damage

Replacements

• Dynatherium can be replaced with Gilasaurus, Junk Forward and Mithra the Thunder Vassal.