During play type "MEA CULPA" and use the following keys:

'I'--------------------------------------Invincibility
'Z'------------------------Kills enemies on the screen
'D'-------------------------Gives darkman the disguise
'P'---------------------------------Refills life meter
'R'----------------------------------------------?????
'SPACE'---------------Bypass photo session w/ disguise
'1'-'6'----------------Skip to the corresponding level
'F1'-'F7'--------------Skip to the corresponding level
'F8'--------------------------------Skip to next level
'J'---Move darkman anywhere on the level with joystick
('J' can be toggled on/off)