This article is about a Mechanical Trap Bakugan. For the Season 1 Bakugan, see
Fortress is Shadow Prove's Mechanical Bakugan Trap. It takes the form of a cube like Zoack, but has a more circular body when it opens (opposed to Zoack's more square form).
Fortress is a robotic Bakugan Trap used by Shadow. Fortress links to Hades to form multiple attack options that make him almost unbeatable. Ten cannons stick out from his hands and legs, and rockets below his feet allow him to fly to avoid enemy fire.
Bakugan: New Vestroia
Shadow used Fortress for the first time to battle against
Shun in , where he and Last One Standing Hades defeated Ingram and Hylash.
Shadow used Fortress again in
. It battled against Shadow Attack Fourtress but ended up defeated.
Pyrus Fortresses appeared throughout and All For One , used by King Final Fury Zenoheld. Bit by bit the army was laid to waste, and the final legions were destroyed in the explosion of the Alternative's demise.
Photon Rain: Subtracts 200 Gs from the opponent. (Darkus)
Proton Mars: Adds 200 Gs to Fortress. (Darkus)
Crossfire: Transfers 300 Gs from the opponent to Fortress and nullifies the opponent's ability. (Darkus)
On Bakugan Dimensions, its Special Ability's artwork featured Fourtress's artwork instead of its own.
Fortress is the only Bakugan Trap in anime which was shown in more than one Attribute.
The two attributes it was shown in were one of the Attribute pairs that existed among the Dual Attribute Gatekeepers.
In Bakugan: Defenders of the Core, it was the most used Trap Bakugan.