Downtown Nekketsu Jidaigeki has never been released for PC, so it has no PC system requirements. It came out on Nintendo 3DS. Released in 2015.
Running Downtown Nekketsu Jidaigeki on a computer
There is no emulator for Nintendo 3DS that this site will point you at.
Games of the same series that run on PC
STAY COOL, KOBAYASHI-SAN!: A RIVER CITY RANSOM STORY
Nekketsu Boxing
River City Girls
River City Melee: Battle Royal Special
River City Ransom: Underground
River City Super Sports Challenge ~All Stars Special~ Downtown Nekketsu
Where Downtown Nekketsu Jidaigeki can be played
Platforms: Nintendo 3DS.
