Level select: Hold Right and press B(3). Release Right
and press Up, B(3), Left, B(3), Down,
B(3), Start. A number and letter will be displayed.
Press A or B to select a new starting level and
press Start to begin game play.
Bonus message: Complete both quests, then press A, B,
Up, Down, A, B, Left, Right.
Continue game play: In the Japanese version, after losing all your lives,
hold Right and press B(3), Start at the title