This weekend I (nearly) completed a 100% run of GT2.These were the rules I ran under, but I would like to submit them to the community for debate so we can all agree on one set.
-Emulators: Emulator use is allowed, provided the game is run at its native framerate (ePSXe video plugins can auto-detect this) and the runner keeps the frame rate display up the entire time. No emulator features (save states, frame advancing, etc.) are allowed.
-Game discs: All versions of the game (NTSC 1.0, 1.1, 1.2, and PAL) are allowed. For versions of the game that contain the 98.2% glitch, 98.2% completion is sufficient.
-Completion: All races, including the event generator, must be completed. Obtaining every license is required, but as licenses do not count toward game completion, it is not required to obtain all golds. Either Vauxhall or Opel manufacturer events need be completed in PAL versions, not both.
-Timing: The run begins when Simulation Mode starts and ends when the runner opens the game completion screen to show 98.2%/100.0%.
-Timer pausing: The timer can be paused, but only after the runner exits Simulation Mode, enters the Save Game screen, and saves the game (once Save Complete is displayed, the timer can be paused). The timer cannot be restarted until the runner enters the load game screen from the main menu and begins reloading the game (once the Choose Memory Card screen is displayed, the timer must be restarted). The runner is not allowed to enter any other menu except for the settings menu while the timer is paused. Furthermore, runs must be completed within a seven-day period starting from the minute the run begins.