Keyboard:
Run/Stop pause
Q abort game (in pause mode)
S switch between music and SFX
Space talk to persons / buy goods
. (dot) scroll weapon list to the right
, (comma) scroll weapon list to the left
Joystick:
⇐ go/run left
⇒ go/run right / in the shop choose other goods / make a choice in dialogues
⇑ jump / go through doors / go up on stairs
⇓ duck / pick up items
* shoot or use items
Fuente:
c64-wiki