According to ESRB, this game contains: Fantasy Violence
Parents shouldn't be put off by the T rating that Sphinx carries—this is another example of a game getting a rating that was probably harsher than it deserved. The fantasy violence is innocuous, with Sphinx hacking up a lot of bugs primarily. The game features no blood, gore, sexual situations, nudity, or anything else that would be inappropriate for the kids.
Action/Adventure fans should consider checking out this title. It plays a lot like the Nintendo 64 era Zelda games, only not quite as polished. While Sphinx may never reach the lofty plateaus of Link's greatest adventures, that doesn't mean that this is a game without merit. It's actually quite charming, and kept this reviewer amused throughout.
Casual gamers will also want to give Sphinx a look. It's one of those games that can be picked up, played, and then set aside for awhile with nothing lost in the downtime. Plus it's funny enough to appeal to players of all ages and demographics.
Deaf and Hard of Hearing gamers can play Sphinx without trepidation—the game has absolutely no voice acting, so the entirety of the script is presented through text dialogue.