This is a rule I came up with after seeing a youtube video. First you'll need a “Mega” bakugan (like Mega Brontes Or Mega Nemus). Let's say you have a mega nemus. The second thing you'll need is a small dice. It doesn't matter what kind of dice it is as long as it has numbers or something that represents numbers on it. Now here's what you do. You take the small dice and fit it into Mega Nemus's square space before you close it. Then close it after the dice is in there. When Mega Nemus opens on a Gate card the dice should pop out. The side the dice lands on is going to have a number on it. Multiply the number it landed on by 10 then add that to your Mega Nemus's printed g-power. Say the dice lands on 3 you get +30g's. But what I like about this is that if you can find a small enough 10 sided dice or 16 sided dice you can fit it in there and the same rule still applies.
guys i seen the commercial and mega nemus is on the thing of the specail attack bakugan i no wbelive like dice thrower mega nemus is going to have a dice throing action in special attack form