According to ESRB, this game contains: Violence
Parents have nothing to fear with this title. Ikaruga is a throwback to the days of old when games were certainly about blowing things up, but rarely about killing people. The destruction in this title is of various well-armed spacecraft, with nary a person or alien in sight.
Shmup fans will want to grab this game immediately—it's a fantastically visceral experience that brings back memories of the days when shoot-'em-ups ruled the arcades. This game is a masterpiece, and belongs in every GameCube owner's library.
Casual gamers should also experience Ikaruga. While the gameplay may look relatively simple in comparison to this generation's titles, it's much more complex and involved than it appears at first glance. Simply put, Ikaruga will satisfy your retro gaming needs, or allow you to see what games were like in years past if you were too young to actually remember the good old days.
Deaf and Hard of Hearing gamers should have no concerns. Ikargua is a shooter with very little in the way of voices. In fact, the only real voice is a robotic counter that keeps track of your combos, and even gamers who can hear have an incredibly difficult time making out what he's saying.