Dragon Ball: Shenron no Nazo has never been released for PC, so it has no PC system requirements. It came out on NES. Released in 1986.
Running Dragon Ball: Shenron no Nazo on a computer
There is no emulator for NES that this site will point you at.
Games of the same series that run on PC
DRAGON BALL: Sparking! ZERO
DRAGON BALL: THE BREAKERS
Dragon Ball Z: Kakarot
SUPER DRAGON BALL HEROES WORLD MISSION
DRAGON BALL FighterZ
Dragon Ball Xenoverse 2
Where Dragon Ball: Shenron no Nazo can be played
Platforms: NES.
