Battletoads and Double Dragon: The Ultimate Team Cheats - Sega Genesis

Level select
Press [Down], [Up]x2, [Down], [C], [A], [B] at the character selection screen. A sound will confirm correct code entry. The level select menu will appear after a character is chosen. This will also allow your player to have ten lives. Alternatively, press [B], [A], [Down], [B], [Up], [Down] at the character selection screen for the same options with five lives.

Five lives
Hold [Up] + [A] + [B] and press [Start] at the character selection screen.

Ten lives and level select
Press [Down], [Up]x2, [Down], [A], [B]x2, [A] at the character selection screen. Choose a character and press [Start] to display the level select menu. Ten lives will be available during game play. Note: The final ending will not appear when this code is enabled.