From The Bakugan Wiki
BakuMine is the name of a subtype of Bakugan. These types of Bakugan "explode" when they stand on a Gate Card. They were seen at the 2011 New York Toy Fair. Tremblar is the only BakuMine Bakugan that was released and it is exclusively available in Bakugan Extension Packs.
List of BakuMine Bakugan