To enable a couple of debug features in MAME, press Tab while the game is running to bring up MAME's menu. Choose Machine Configuration and change Enable Dev Inputs to Yes.
Pressing Dev Service Enter activates a recording feature that no longer functions. Some info is displayed in the lower right corner.
Pressing Dev Unknown 2 activates a free camera mode. The steering wheel turns the camera left and right, the brake moves the camera fowards, and the shifter slowly raises and lowers the camera.
Present at 0x400 in the main CPU.
Present at the beginning of the MCU.
NSTX7702 ver1.00 namco all rights reserved 93/7/01
Present at 0x10 in both DSPs.