Contra Level select: Press Up(2), Down(2), Left, Right, Left, Right, B, A, B, A, Start at the title screen. Extra lives: Press Up(4), Down(4), Left(4), Right(4), Start at the title screen. Alternately, pause game play and press Up(2), Down(2), Left, Right, Left, Right, A, B, A, B, Select, Start. Sound test: Press Up, Down, Left, Right, A, B, Start at the title screen. Unlimited lives: Enter B32R as a password. Level skip: Enter H2F2 as a password, then press Start to advance to the next level. Level Difficulty Password 4 Easy 21LN