Cybernoid II: The Revenge

At the main menu, press 2 to configure keys. Choose the keys Y, G, R, O (orgy backwards) for the directions left, right, up and fire. Press 4 for joystick control. Press 1 to start the game with unlimited lives.

Fuente: Lemon64

Cybernoid: The Fighting Machine

At the main menu, press 2 to configure keys. Choose the keys Y, X, E, S for the directions left, right, up and fire. Press 4 for joystick control. Press 1 to start the game with unlimited lives.

Fuente: Lemon64

Metal Warrior

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