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Adapters and hacks
Besides the official compatibility, it is possible to use unofficial adapters, tools and hacks to use controllers with games which is unsupported officially.
PlayStation 2 cheat codes for PlayStation 1 controllers
While Densha de GO! 3 and Densha de GO! Shinkansen officially support the original (non-USB) PlayStation 1 controllers, Densha de GO! Ryojouhen, Densha de GO! Professional 2 and Densha de GO! Final are only compatible with USB controllers. Via cheat codes, it is possible to use the original PlayStation 1 controllers on real hardware, either with retail discs or via OPL.
The codes emulate a Type 2 controller. You will need to connect the controller as follows:
- Port 1: Dualshock or Dualshock 2 (D-pad, needed for menus)
- Port 2: PlayStation 1 controller (handles and buttons, SELECT is mapped to D)
Each game requires an specific cheat code:
For retail discs, the codes can be loaded with ps2rd or Cheat Device. If you are using OPL, it already includes ps2rd and you just need to copy the codes and enable cheats.