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How to Make PS1 Games Work on PS2 Fat

The original PlayStation 2 (PS2) -- the "fat" design -- was designed to be backward-compatible with PlayStation games (also sometimes called the PlayStation 1 or PS One). While the "fat" PlayStation 2 release introduced a lot of new and improved technology over the PlayStation, it retained much of input/output hardware, which aided in the backward compatibility. There is no one-size-fits-all approach to backward compatibility; some games and peripherals may work well, while others won't function at all.

Instructions

- 1
  Acquire an original PlayStation memory card for your games; PlayStation games cannot save to PlayStation 2 cards, and vice versa. However, you can copy PlayStation save files to PlayStation 2 memory card as a way to back up unused files and save space on your PlayStation memory card.
- 2
  Make sure that you're using the correct functions on your controllers; if you choose to use a DualShock 2 controller, which uses analog buttons where the PlayStation controllers did not, ensure that you're pressing the buttons hard enough that the game registers them.
- 3
  Use the right MultiTap -- the hardware that allows you to connect up to four controllers to your PlayStation system -- for the right system; PlayStation games will not recognize the the PlayStation 2 MultiTap and vice versa.
- 4
  Avoid using hardware like the GameShark or Action Replay for the PlayStation on the PlayStation 2; because these interact with the PlayStation hardware directly, it can have trouble interacting with the PlayStation 2.
- 5
  Turn off texture-smoothing and fast-loading; you can do this by pressing the "Triangle" button on your controller while the PlayStation 2 is on the browser menu. Select "PlayStation Driver" and press "Triangle" again to change your settings. These settings will need to be change each time you restart your PlayStation 2 and will not guarantee function for all PlayStation games.

PlayStation 2