okies, here's some info
First thing to do is "Right Click" your Max Payne shortcut on your desktop or in your "Start Menu" and then click "Properties". Add "-developer" to the "target" line, the target should look something like this "C:\Program Files\Max Payne\MaxPayne.exe" -developerkeys. When in the game press "F12" to open the system console. You can enter the following cheats there:
C-Key - Cycle Through 3 Different Camera Modes.
PageUp - Cycle Mesh Up.
PageDn - Cycle Mesh Down.
Ctrl + PgUp - Cycle TextureSet Up.
Ctrl + PgDn - Cycle TextureSet Down.
Home - Increase Game Speed.
End - Decrease Game Speed.
Home + End - Set Game Speed To 1.00x.
Insert - Teleport Max To Next Start Point.
Delete - Teleport Max To Previous Start Point.
F7 - Switches AI Movement Network Conn. Visualization.
F8 - Switches AI movement Network Node Visualization.
F11 - Toggle Statistics ON/OFF.
F12 - Open Console.
Left-Key - External Camera Left.
Right-key - External Camera Right.
Up-key - External Camera Forward.
Down-Key - External Camera Backward
So just hit Pause then whirl the camera around to any angle you want.
As for the crosshairs and the bullets in Pause - check out http://mods.maxpayneheadquarters.com/
, there's a few good mods there. I got one of the ones with an MP5 and dual desert eagles