At Gamestop, if you pre-order Activision's Bakugan for the Nintendo DS you will receive a Bakugan battle brawler Nintendo DS carrying case.
Pre-Order here.
Here’s the lowdown on the Gamestop deal: If you pre-order the DS version, you get a zipper case for your handheld, which will fit all models of the Nintendo DS and DSi and features official Bakugan characters Dan Kuso, Shun Kazami and Choji “Marucho” Marukumo on the forefront. The case’s interior will include a transparent plastic sleeve that will fit the DS buttons and screen. It will also feature the same padding to protect your system, as well as storage space for the stylus, game cartridge, and battle cards. This awesome carrying case is a must-have for any Bakugan fan.
Pre-Order here.