Sonic's Secrets: Battletoads & Double Dragon.

On the Character Select screen (see right), press &

HOLD Up + A + B, then press Start.

You will now start the game with 5 lives instead of 3. Beat the Dark Queen and the Shadow Boss using this trick and you should get the normal game ending.

On the Character Select screen (see top right), press:

Down, Up, Up, Down, C, A, B

You will hear a noise confirming the code has been entered correctly. Now pick your character and press Start, the Mega Warp Zone screen will now appear (see right). You can start on any stage with 10 lives.

Note: you won't see the real ending if you beat the game using this trick!