Enter the hiragana below for the designated effects.

Password	Effect
he i ki	Weapon select (press Select during gameplay to change weapons, or twice in a row in the overworld)
mo mo ko	Enables all three of these - weapon selection, stage selection, and limited invulnerability - as well as cutscene skipping (press A to skip it)
mu te ki	Limited invulnerability (some things like pits can still kill you)
sa ka ta	Weapon select AND stage select (pause the game and press Select for the overworld stages and A for other in-game events)