Bonus Song
On the Option screen, choose Hard Mode, then select "STAFF"
in the sound test. Push B to hear the tune, then tap Y for a special
version of the song.
Extra Lives
At the title screen, press Up, Up, Down, Down, Left, Right, B,
A on Controller Two. Next, go to the Options screen and use Controller
One to increase your lives up to 10.
Level Select
At the title screen, press Up, Up, Down, Down, Left, Right, Left,
Right, L, R on Controller Two.