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 ''This article is about a Mechanical Trap Bakugan. {{For the |Season 1 Bakugan, see [[|Fourtress]].''}}'''Fortress''' is [[Shadow Prove]]'s [[Mechanical Bakugan]] [[Bakugan Trap|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).

Hundreds of [[Pyrus#Generation 1|Pyrus]] Fortresses appeared throughout ''[[All for One]]'' and ''[[Final Fury]]'', used by King [[Zenoheld]]. Bit by bit the army was laid to waste, and the final legions were destroyed in the explosion of the [[Alternative Weapon System|Alternative]]'s demise.

*On In ''[[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 to be shown in more than one Attributemultiple attributes.**The two attributes 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.

==References=={{VexosReflist}} {{NV main characters}}

[[de:Fortress (Fallen-{{Bakugan)]]Support Pieces Nav}}[[es:Fortaleza]][[pl:Fortress (pułapka)]]