Despite bearing the Kai branding, Ultimate Butouden is surprisingly comprehensive. It covers the entire Dragon Ball Z timeline, from the Saiyan Saga through the Majin Buu Saga. Key features that made it a fan favorite include:

If you are searching for the "European ROM," you should search specifically for to ensure you get the localized European version rather than the Japanese import.

Because the Nintendo DS and DS Lite are region-free , the original Japanese cartridge (or a ROM copy) will run perfectly on any handheld from any region, including European units.