If you still own the original game but want to play on a modern device, you can use a GBA emulator.
Since the game is a legacy title for the Game Boy Advance, you can no longer "download" it from modern official digital storefronts like the PlayStation Store or Steam. Here are your options: Download Dragon Ball Z- The Legacy of Goku
Once you finish The Legacy of Goku , the journey isn't over. The series continues with The Legacy of Goku II and Buu’s Fury , which many consider some of the best RPGs ever made for a handheld system. If you still own the original game but
– He stared at the pixelated screenshot of Goku in the Frieza Saga. Download Dragon Ball Z- The Legacy of Goku