He is the most intelligent of the brawlers and has a new outfit in Gundalian Invaders. His new Guardian Bakugan will be Akwimos,Preyas, and Minx Elfin. After Ren gave him a new Phantom Data, Marucho created Bakugan Interspace which allowed all brawlers around the world to battle each other.
In episode 1, he was revealed to have finally released Bakugan Interspace to the entire world. He is ranked #3 on the Interspace rankings. He gave Jake his first Bakugan, which is a digital copy of Coredem, the Subterra Bakugan that arrived in Bakugan Interspace when it received the "Unknown Data."
In episode 2, Marucho did not last long in the battle against Sid and Lena. Akwimos ended up showing a weakness to Phosphos's venom. Marucho was able to help Drago by nullifying Sid's gate card. So Dan did most of the battle.