For a child who loves outdoor activity and adventure, how about the Bakugan skateboard? Pair them up with the official Bakugan Dan action gloves for extra protection and cool factor.
If your child has lots of Bakugan game accessories and nothing to carry them in, get them the Bakugan Baku-Belt Action Kit. It has lots of special compartments for carrying Bakugan balls, plus metal and paper cards used in the game. For home storage, there's the Bakugan storage sphere, a very cool-looking spherical case with lots of room for storing all their Bakugan collectibles.
If the birthday child has a Wii system, get them the Bakugan Nintendo Wii game. It gets consistently excellent ratings and recreates the thrill of the game with 200 player cards, 40 Bakugans and great extras like the ability to create and customize your own Bakugan Battle Brawler.
How about giving them a Bakugan bedroom makeover? Have another adult sneak into their room during the party and transform their bedroom. Make the bed with a Bakugan sheet set from Walmart, a Bakugan comforter from Target, a Bakugan alarm clock for the bedside table from Toys R Us, and a giant Dan Kuso wall decal. When the birthday girl or boy has unwrapped the last present, tell them there's one last gift waiting for them in their room. When they open the door-surprise!