Cheat Codes Ten lives: Press Right, Left, Down, Up, A, B at the title screen. Then, press Start for a one player game or Select, Start for a two player game. Sound test: Hold A + B and press Start at the title screen. Replay game with previous score: Complete the game once and return to the title screen. Press A, B, Start at the title screen to start the game again with your score intact and three lives. Replay game with previous score and lives: Complete the game once and return to the title screen. Press B, A, Start at the title screen to start the game again with your score intact and the lives accumulated in the previous game. Thirty lives: Press Up(2), Down(2), Left, Right, Left, Right, B, A, Start before the music starts at the beginning of the game. Although posted as a valid code on other web sites, it does not function in the retail version of the game.