Start the game with the "-developerkeys" command line parameter. To do this go under the properties of your Max Payne desktop icon (right click on the Max Payne icon, then select "Properties"), then change the entry for the program to "Target: "C:Program FilesMax Paynemaxpayne.exe" -developerkeys" or something similar. While playing a game, press [F12] to display the console window, then enter one of the following codes to activate the corresponding cheat function:
Result
Cheat Code
Cycle through three camera modes C
Cycle mesh up [Page Up]
Cycle mesh down [Page Down]
Cycle texture set up [Ctrl] + [Page Up]
Cycle texture set down [Ctrl] + [Page Down]
Increase game speed [Home]
Decrease game speed [End]
Set game speed to normal [Home] + [End]
Teleport Max to next start point [Insert]
Teleport Max to previous start point [Delete]
Switches AI Movement Network Conn Visualization [F7]
Switches AI movement Network Node Visualization [F8]
Toggle statistics [F11]
Open console [F12]
External camera left [Cursor Left]
External camera right [Cursor Right]
External camera forward [Cursor Up]
External camera backward [Cursor Down]