According to ESRB, this game contains: Cartoon Violence
Parents can feel comfortable buying this game for their children. All of the characters are adorable, and none of the violence is the kind that will scar children for life. Some of the older games are difficult, but they'll teach your children the hand-eye coordination skills that will serve them well as the fighter pilots of the future.
Sega fans might have a mixed reaction to this collection. Sure, it's nice to see some rarer games putting in an appearance, but they might find themselves disgusted to be fans of a company that would re-release Sonic Drift 2 while sitting on Panzer Dragoon Saga.
Gamers who missed the 16-bit era need not be afraid—while the older games are amazingly difficult by modern standards, Sega has included a quick save option with the game, making all that tedious level replaying a thing of the past.
Deaf and Hard of Hearing gamers should be fine—these are all games from an era of primarily visual storytelling, and there aren't any important audio cues.