how can i make a japanese ps2 game work in my united states ps2 system

how can i make a japanese ps2 game work in my united states ps2 system?
i wanna play a japanese game on my playstation 2, but i have no idea how to make it work on my united states play station 2. how do i make it work?
PlayStation - 1 Answers
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1 :
You Need To Get One Of Those PS2 MAGIC SWAP DISC Google it.