General InformationWorlds: ZEXAL
- Quattro requires Yellow keys to duel at the gate
- You will see Quattro's unlock missions upon reaching Stage 6 or above in Duel World (ZEXAL)
- Reach Stage 6 in (ZEXAL) Duel World. To trigger his unlock missions
- Achieve 1 Comeback Victory(ies) in Duels against Quattro at level 30 using Reginald "Shark" Kastle .
- Summon Loading... 1 time(s) while playing as Reginald "Shark" Kastle , in a Duel against Quattro at level 30.
- Achieve 1 win(s) using only WATER Monster Cards in Duels against Quattro using Reginald "Shark" Kastle .
- Summon a Level (Rank) 8 or higher Dragon-Type monster 2 time(s) in one Duel against Quattro using Kite Tenjo .
- Summon a Level (Rank) 4 or higher Warrior-Type monster 4 time(s) in one Duel against Quattro using Yuma and Astral .
All Signature Cards Voicelines: