According to ESRB, this game contains: Mild Fantasy Violence
Parents have nothing to fear. Besides a few mentally challenging puzzles, there's nothing here to give kids problems or to instigate any untimely questions. There is no questionable language, there is no blood or gore, and there are no sexual situations. Princess Zelda doesn't even kiss Link at the end of the game—that's how clean this disc is.
Zelda fans should sign up with this game immediately and not be put off by the thought of needing extra Game Boys or connectivity. It's a solid single player adventure in its own right, and definitely earns a place next to other highlights in the series.
Deaf and Hard of Hearing gamers will have no problems. All crucial information in the game is relayed via text, and there are no vital sound effects or auditory cues. Everything necessary is either visually on screen, or available from the pause menu. I played approximately 50% of the game without any sound, and noticed no issues.