R       = select weapon
ctrl F  = pause
A,W     = Shoot diagonally
S       = shoot straight
D,X     = shoot diagonally 90 degrees from A/W
space   = toggles Run or Walk
J,I,K,L =  move left, up, down, right (if no joystick)
+       =  move inventory box left
-       = move inventory box right
return  = search/take item from chest/coffin/ or dead monster
;       = searcharea/continue search
/       = use item in inventory box
p       = Put item in inventory box, chest, coffin, or dead monster
F7      = Save game
F5      = Sound Off/On

To load an old saved game just press o (old game) on the title menu.
Consequently pressing F7 during the game takes you to the title screen,
however the game is actually saved.