Deka (Generation 2)
From The Bakugan Wiki
Deka Bakugan are larger versions of normal Bakugan. These Bakugan are also packaged with a Jumbo BakuCore, which allows them to easily open. There are currently no plans for Deka Ultra Bakugan, due to many of those Bakugan require complex open mechanisms. They are unusable in competitive brawling.
The currently known Deka Bakuga are: