Bakugan Mechtanium Surge Episode 15: Interspace Under Siege

Yes this is the episode in which every scene rocks! And Spectra's entrance is awesome, with the new Bakugan in a Darkus attribute. He then explains why Helios changed into a Darkus attribute - it needs to change attribute in order to evolve and acquire stronger abilities.

Then Shun and Marucho too, have their own BakuNano given by Rafe.

Hammermor on Taylean

Crosstriker on Trister

 Also, Boulderon debuts its BakuNano called Slingpike.

Slingpike attached on Boulderon

And here's Spectra with Darkus Infinity Helios.

Watch the whole episode below.