Level select: Press Up(2), Down(2), Left, Right,
Left, Right, B, A, B, A,
Start at the title screen.
Information in this section was contributed by Kenshin.
Ten lives: Press Up(4), Down(4), Left(4),
Right(4), A, B, Start at the title
screen.
Information in this section was contributed by Kenshin.
Sound test: Press Up, Down, Left, Right,
A, B, Start at the title screen.
