While playing, press `(tilde) to bring down the console window, then type the following codes:
Duke Nukem: Manhattan Project cheatcodes (English) Free Download
Code: Result:
toggle g_p_god God Mode
give all Give All Items
give ammo Give Ammo
give jetpack Give Jetpack
give forcefield Give ForceField
give life Give Life
pause pause game
toggle g_map_info Unknown Effect
toggle r_timings Unknown Effect
toggle r_stats Unknown Effect
toggle g_debug Unknown Effect
camera camera Unknown Effect
camera player Unknown Effect
kill Unknown Effect