Double Dragon Advance Cheats

On the options menu, press and hold down the select button and then press:
Up, Up, Down, Down, Left, Right, Left, Right
You will hear a gong if you did it correctly.

On the options screen, press and hold select and then press:
R, L, R, L.
The option will be available after ''credits'' if done correctly.

On the options screen, press and hold down the select button, then press:
L, R, Down, L, R, Down, L, R, Right.
You will hear a ring if you did it correctly.