Galaxian 3 Debug Mode To activate debug mode, press L1, R2, R1, L2, Up, Down, Up, Down while the “NAMCO” logo is on the screen. Ghost Gunner To battle alongside your ghost, turn the Play/Record feature “ON” and play a game. When the mission concludes, go to the Gunner Battle option on the main menu and press Right two times to select “Ghost”. Now play another game. Show Arcade Intro To see the Arcade Intro sequence, press L1, R2, R1, L2, Up, Down, Up, Down while the “NAMCO” logo is on the screen.