Instructions
Roll your Bakugan Fortress onto a gate card on your turn. If you roll your Bakugan and it does not open, you lose the round. Aim for the center of the gate card to make sure your Bakugan opens to reveal Fortress.
Let your opponent take his or her turn. Turn over the gate card the two Bakugan are on top of. Perform any actions that the gate card instructs, such as changing your G Force or your opponent's.
Drop Scorpion on top of the gate card. If it does not open, you don't get to use it's ability.
Place the opened Scorpion on top of the Fortress Bakugan. Place Scorpion so that Fortress's arms go between the arms of Scorpion. Because Scorpion's claws move outward horizontally, and Fortress' arms are more vertical, the two fit together.
Add Scorpion's G Force to Fortress' for a total of 750 G Force, not considering any other modifications that are in effect from the gate card or other ability cards that have been played.