Bakugan: Mechtanium Surge (Japanese version: Bakugan Battle Brawlers: Mechtanium Surge (爆丸バトルブローラーズ メクタニウムサージ, Bakugan Batoru Burōrāzu Mekutaniumu Sāji?)) is the fourth and final season of the anime series Bakugan Battle Brawlers. It contains a total of 46 episodes across two arcs; the first arc debuted on February 13, 2011 in Canada and March 5, 2011 in the United States. The second arc debuted September 10, 2011 and contains 20 episodes.

Mechtanium Surge did not air in Japan and Korea, as Japan decided to air BakuTech! Bakugan after Gundalian Invaders.


First Arc

Bakugan Interspace gets messy when Dan learns his battling directly threatens Earth. Drago’s exposure to Code Eve has infused him with Incredible Power and as a result Dan accidentally releases Mechtogan Zenthon, a new mysterious entity that wreaks havoc whenever Drago battles! While Dan attempts to regain control over Drago’s new powers, an insidious enemy builds an army of “Chaos Bakugan” engineered for total world domination! Will Dan be able to get a hold of Drago's power before its to late?

Second Arc

Bakugan City is shown to have a peaceful start as humans have now communed with the Bakugan from New Vestroia. Not all is well when 4 Mechtogan who have broken free from their Bakugan start terrorizing the place. Not only that, but some creep called Wiseman has apperared with ancient Bakugan called the Nonets. It's now up to the Battle Brawlers to stop Wiseman, the Nonets and the Mechtogan's greatest weapon: Mechtavius Destroyer!


Battle Brawlers

Main Heroes

Minor Members

Arc 1
Arc 2


Arc 1 Villains (Chaos Army)

Arc 2 Villains (Nomad Mechtogan Faction)

Former Villains

Arc 2

Secondary Characters

Teams Anubias & Sellon

Other Bakugan

New Features


  • This is the first Bakugan season which features Brawlers and Bakugan hailing from every planet introduced in previous seasons: Earth, New Vestroia, Vestal, Neathia and Gundalia.
  • Like the previous season, only Drago and the main antagonist (Razenoid) evolved.
  • This is the only season without a team of six antagonist Brawlers of each Bakugan Attribute, with Wiseman in Arc 2.
  • It is the only season that has Bakugan with different Attributes from previous variations.
  • In Arc 2, this is the only season where the main protagonist brawlers use two attributes (Dan: Pyrus and Haos, Shun: Ventus and Darkus, Marucho: Aquos and Subterra).
  • Mechtanium Surge Arc 1 is the only season in the Bakugan TV Series where at least one of the main protagonists that are female that is a member of the Brawlers (Paige) did not have a crush on Dan. (Julie and Runo in the 1st season, Mira in NV and Fabia in GI had a crush on Dan.)
  • Though this season never aired in Japan, a Japanese dub of this season exists using the original Japanese cast and soundtrack. It can be heard in the Vietnamese version, which is simply dubbed over the Japanese version and uses a modified version of the Japanese New Vestoria opening and ending.
    • The uncut Japanese version is also the basis for the footage in the Mandarin, Cantonese, Thai versions of the show; unlike the Vietnamese version, these versions do not dub directly over the Japanese audio.