This cheat requires the Windows version of the game. Remove the game CD from the CD-ROM drive. Click on the Police Quest 4 icon. Click on the "Cancel" option of the drive not ready error message. Repeat this at least more four times, and cancel each error message. When the error message appears again, insert the game disc and repeatedly click the "Retry" option. Select a location from the list of all game locations. Then, select a day from the list of days. Game play will begin at the select location and day.
Do the following for points. You can either feed the dog in Griffith park pretzels, or shine light in his face with your broken car mirror to earn points. For example, feed him the pretzels, then go to the map screen. Go back to the park, then use the mirror on him. Use the tool you made with the mirror, glue, and drumstick to check under the bed in the "mysterious place". Record the trapdoor and the shoe in the "mysterious place" in your notebook. If you want, at the Parker center computer, you can look up Wendy James and Erik (the guy listed under Walker's profile) under hate crimes for some interesting information.
The arcade machines in the Short Stop Bar can be played. Make sure the arcade machine is not being played by anyone. Place a couple of coins in the machine, then click on the machine with the hand icon to play the rocket game or truck game.
Game tells you not to cheat
Try entering the license plate number "E2BSY669" in the computer before you get that information.