Nine Objects
Press Up, Down, Up, Down, B, A at the “Press Start” screen. A sound will confirm correct code entry.

Press L(3), R(3), Right(2) at the “Press Start” screen. A sound will confirm correct code entry.

Invincibility
Press B(2), A(2), L, R, Down, Up at the “Press Start” screen. A sound will confirm correct code entry.