If nine lives aren't enough, how about nine continues? At the Options screen, press Up, X, Left, Y, Down, B, Right, A, Up, X.
Who says only cats have nine lives? With this trick, even flying rodents can get into the ation. At
the Options screen, use Controller Two to press Up, Up, Down, Down, Left, Right, Left, Right, B, A. If you performed the trick correctly, you'll hear a musical sound. Now go to the LIVES option, and give yourself nine lives!