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Pole Position 5-13-83 Although this prototype has the same date as the final version, it actually has some very minor differences. There is code in this version that detects whether or not the controller has been disconnected by looking for the value 228 from the controller port and makes the car move straight ahead and switches to low gear if it finds the value (why this was necessary to check for is unknown). However the programmer forgot that a value of 228 can be produced by moving the controller all the way right or down so during regular gameplay the car will constantly move straight instead of right if the controller is pushed too far right. Int he final version this bug was corrected and the behavior changed so that if the controller is disconnected the car will turn right and the gear is changed to high. Once again it's unknown why the programmer felt the need to detect if the controller was unplugged, but it must have been a problem during playtesting for them to go through the effort of doing so.
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