Details

• Game: Initial D - Street Stage (PSP)
• Goal: Complete all time trial courses (dry, night)
• Setup: Drag the "0293 - Initial D - Street Stage (Japan) (v1.01).iso" file over PPSSPPWindows64.exe to start the game. You can configure controller mapping in the emulator by going to Game settings -> Control mapping.

Start:

• Pick the first save file with name アアアアア.
• In the main menu, pick the second option タイムアタック.
• Pick Automatic or Manual transmission (AT recommended).
• Select the first course (妙義), now pay attention because here are the settings you will select, you have to do this for each course.
• select the left option (左周り), the left option (DRY), the right option (NIGHT).
• Wait here, when the race starts select NO
• End: On crossing the finish line of Tsuchisaka (the default BGM for this course is "9. FALL IN THE WEB OF DESIRE". It's displayed in the bottom-left when you're selecting a course.)
• Stage order: After completing a course, play the one to the right of it.

Post-race menuing

After each race, mash circle until the green saving dialog shows up.
After that disappears, your car will be rotating and there will be three options above it;

pick the middle one.

(The third takes you back to the main menu; the first takes you back to the race - press Start and select Exit if that happens.)

Controls

Circle = Confirm (in menus)
Analog = Steer
X = Accelerate / Cancel (in menus)
Square = Brake
Circle = Toggle Headlights
Triangle = change view
L1/R1 = shift down/shift up (if in manual transmission)

After hitting a wall hard, your car will suffer from reduced acceleration for a few seconds.