seen from Russia
seen from Türkiye

seen from United States

seen from United States

seen from Canada

seen from Malaysia

seen from Malaysia
seen from United States
seen from China
seen from China
seen from United States

seen from Malaysia
seen from Russia
seen from Canada
seen from Belgium
seen from China

seen from United States
seen from Qatar
seen from South Africa
seen from Japan
I still find it funny how all the "final boss" brawlers were all either aligned with the pyrus or darkus attributes.
Battle Brawlers:
Masquerade & Hydranoid - Darkus
I guess Naga is an exception to that since he wasn't technically aligned with any of the core attributes but his Silent Naga variant seems to lean more towards darkus than any of the other attributes.
New Vestroia:
Spectra & Helios - Pyrus
King Zenoheld & Farbros - Pyrus
Honorable mention to Prince Hydron who was a subterra brawler. However while he was technically one of the main antagonists of the first half of the season, he wasn't actually a brawler until the second half, at which point Zenoheld had already been established as the "final boss".
Additionally, Spectra & Helios switch attribute alignment during a later season but since the switch is to the darkus attribute (and at that point in the series they're no longer enemies) so they're still eligible for this list.
Gundalian Invaders:
Ren Krawler & Linehalt - Darkus
Barodius & Dharak - Darkus
Mechtanium Surge:
Mag Mel & Razenoid - Darkus
Betadron - Darkus
I didn't list Wiseman because he uses all of the Nonet Bakugan which means he wasn't just restricted to one attribute.
There wasn't really any point to this, just a funny little detail. It would've been interesting to see some other attribute as the "final boss" brawler & bakugan duo but I'm fairly happy with the ones we did get.
barodius but like. with a different voice.
Dan and Ren
You know, you can tell me anything.
Mega Meta
This is the second opening of Bakugan: Gundalian Invaders. I hope you like it. Sadly I don’t know the lyrics.
Listen. Listen some bugs just have Big Poofy Tails for abdomens and theres nothing I can do to change the ones that don't. This is just how things are, I cannot control what bugs nor gundalians do with themselves the same way I cannot control the trajectory of my own life and career.
Moth Time by @iee-kee
(Happy ides of March 🗡👀)
you have no idea how much i missed you