- Black Drago who tried to convinces his twin brother to stop using the forbidden abillities
Darkus Neo Dragonoid is the evolution of Darkus Infinity Dragonoid like Neo Dragonoid, he was born from the Perfect Core. He is the guardian Bakugan of Caroll-Ann-Audrey0770.
Like Dan's Drago. Black Drago was seperated from his core, but he is turned into a ball form. He is very happy to see his partner Caroll-Ann. He understands that the world was been invaded by the Vestals. He must stop the Vexos from capturing Bakugan with the help of Drago.
In Invasion of the Vestals, he is happy to see Caroll-Ann, he speaking to his partner that the Bakugan are captured by the Vestals, he encouraged Drago to defeat Volt and Lync.
In Show Me the Power!, he and Drago battled Viper Helios and Metalfencer alongside Scorpion. He lost even though he used a Perfect Core Ability and was taken by Spectra due to a Forbidden Ability Card that Spectra used on Viper Helios. After the battle Spectra properly used the Forbidden Card on him but was not shown. That cause Black Drago to cries about the lost of his brother.
In Gone, Gone Bakugan, he helped Apollonir to battle his brother who uses Forbidden Abilities just like Viper Helios. Later in episode he calm when Apollonir transformed Vexos Dragonoid back into Neo Dragonoid. Also he carried his poor brother goes back to Dan.
In Beta City Blues, he and Drago battled Hades and Elico alongside Mega Nemus and wins due to a new Perfect Core Ability that he used called "Dragon Contender". When he uses that ability it destroyed the Beta City controller.
In Ultimate Bakugan, he and Drago saved Dan and Caroll-Ann from falling when they reverted to ball form due to Prince Hydron's Dimension Controller. Later, he and Drago faced Cyborg Helios in the first and second round. He lost in the first round and in the second round he won. In the third round, he battled Maxus Helios and lost. In the last round, Black Drago encourages Dan and Drago to had no choice but to use the Mechanical Bakugan as well. He then combined with them to form Maxus Dragonoid and the battle couldn't be decided yet. So Black Drago was surprised
In Final Countdown, the battle against Maxus Helios and Maxus Dragonoid continued on and still no winner was determined. Black Drago encouraged his brother to battle Cyborg Helios
In Reunion, neither Drago nor Helios won and the result was not determined. Even though the battle was terminated, Helios still wanted to fight Black Drago and Drago and that was yet another draw. He and Drago also go to Earth with Dan and Caroll-Ann and the others and he learned that he could open a dimensional gate by himself. He also learned that he was almost as powerful as the Perfect Core itself. That meant he could separate from the Perfect Core.
- Ability Cards
- Dark Burning Dragon: Adds 200 Gs to Darkus Neo Dragonoid.
- Dark Burning Tornado: Transfers 200 Gs from the opponent to Darkus Neo Dragonoid.
- Dark Fire Tornado: Transfers 100 Gs from the opponent to Darkus Neo Dragonoid.
- Dark Fire Shield: Subtracts 200 Gs from the opponent.
- Dark Burst Shield: Nullifies the opponent's ability.
- Dark Tornado Barrier: Nullifies the opponent's ability and subtracts 100 Gs from the opponent.
- Dark Strike Dragon (Sprite Dragon): Transfers 400 Gs from the opponent to Darkus Neo Dragonoid. (Perfect Core)
- Dark Dragon Contender: Brings the opponent's power level back to their base level and adds 600 Gs to Darkus Neo Dragonoid. (Perfect Core)
- Dark Maximum Dragon: Transfers 500 Gs from the opponent to Darkus Neo Dragonoid. (Perfect Core)
- Fusion Ability Cards
- Darkus Slayer: Subtracts 100 Gs from the opponent and adds 300 Gs to Darkus Neo Dragonoid.
- Darkus Dragon Clash (Dragon Crash): Transfers 400 Gs from the opponent to Darkus Neo Dragonoid. (Perfect Core)