Bakugan Extension Packs are Extension Packs like Mechtogan Extension Packs. They consist of two BakuMutants, one BakuNano and two Core Bakugan. The BakuMutants are always Mutant Taylean and Mercury Dragonoid, and the BakuNano is always Slingpike. In Arc 2 of Mechtanium Surge, the Extension Packs contain two BakuFusion Bakugan, one BakuMine Bakugan, and one Baku Sky Raider, 4 Metal Gate Cards, and 4 Ability Cards. Later Arc 2 packs include two BakuMutants in place of the BakuFusions.