Hidden options:
Hold A + B + C when "Press Start" appears at the title screen. A hidden options screen with music, sound effects, and password selections will appear.

Level	Password
1	FYBY1QZFQ240Q0
2	89D020JCYY8CZ8
3	P69HOSK7YCKCX
4	TZZY2159Q9YK80
5	SD7X128VZ[Face]KK.8