Here you will find Roms of Dragonball Z.

Also to save time i have uploaded all the GBA and DS roms, you can download all the GBA and DS DBZ roms in one rar file

DBZ Rom Collection

And you will be needing the emulators to play them so download them below

DS and GBZ Emulators

VBA is for the GBA games and the other is for DS but it can play the GBAs as well. exract the folder and use the NO$GBA.EXE to open the roms