Japanese consoles are NTSC and run on 110volts
US consoles are NTSC and run on 120volts
Australian consoles are PAL and run on 240volts
European consoles are PAL and run on 230volts
The first thing you will need is a console with a mod chip that will allow games to play from other regions. Secondly you will need an aftermarket power supply that runs multivoltage. Third you will need a TV that supports NTSC input or a conversion box.