checked-yes =>Extra Modes: Choose one of the six games from the main menu. On this game's title screen, press U U D D L R L R B A and a chime will sound. Until you return to the main menu, this game will have changed as follows... * Frogger: New graphics and music. * Scramble: New graphics, music, and ships. * Gyruss: Slight graphical enhancement. * Time Pilot: Enables rapid fire when you hold down the fire button. * Rush'n Attack: You begin with 6 lives instead of 4. * Yie Ar Kung-Fu: Nothing happens.