Jack the Giantkiller pinouts Cinematronics, 1982 I believe cocktail mode can be wired by hooking up the player 2 controls. I think the player 2 controls for L, R, D, and U are on pins N, P, R, and S. I think the player 2 button controls are on pins 6 and 7 or 10 and 11. If you only wire the player 1 controls, the game will work fine in an upright mode. Player 2 and Player 1 can both play off the same joystick and buttons. CPU Edge Connector: (A) SOLDER SIDE | PARTS SIDE (B) ------------------------------------|-------------------------------------- | A | 1 | Gnd --------------------------------|---|---|---------------------------------- | B | 2 | +5V --------------------------------|---|---|---------------------------------- -5V | C | 3 | +12V --------------------------------|---|---|---------------------------------- Spkr - | D | 4 | Spkr + --------------------------------|---|---|---------------------------------- Coin 1 | E | 5 | --------------------------------|---|---|---------------------------------- Coin 2 | F | 6 | --------------------------------|---|---|---------------------------------- | H | 7 | --------------------------------|---|---|---------------------------------- | J | 8 | P1 Throw --------------------------------|---|---|---------------------------------- | K | 9 | P1 Shoot --------------------------------|---|---|---------------------------------- 2P Start | L | 10| --------------------------------|---|---|---------------------------------- 1P Start | M | 11| --------------------------------|---|---|---------------------------------- | N | 12| --------------------------------|---|---|---------------------------------- | P | 13| --------------------------------|---|---|---------------------------------- | R | 14| --------------------------------|---|---|---------------------------------- | S | 15| Red --------------------------------|---|---|---------------------------------- P1 Left | T | 16| Green --------------------------------|---|---|---------------------------------- P1 Right | U | 17| Blue --------------------------------|---|---|---------------------------------- P1 Down | V | 18| Sync --------------------------------------------------------------------------- P1 Up | W | 19| Video Gnd --------------------------------|---|---|---------------------------------- | X | 20| --------------------------------|---|---|---------------------------------- | Y | 21| +5V --------------------------------|---|---|---------------------------------- | Z | 22| Gnd ---------------------------------------------------------------------------