Overall, this is a great game. I've actually wanted to play it for a while, and just a few days ago I bought it at a surplus store for $5. (Must not have sold well. Lol.) One thing, the game does have pretty bad language. BUT, you can turn on the language and gore filter which will "beep" out the language and stop the blood. I do believe though that there is still some dismemberment, just no blood. And as the beeping, if your child has ever heard bad language before, it is not hard to tell what he is saying even over the beep. There is some slightly suggestive themes for sexuality, such as talking about french kissing, and also one character ends up wearing slightly reviling clothing. (Ripped up, can see navel and some cleavage.) Also, as for violence, there is an important cut-scene where you end up decapitating a demon. I don't know if it would not show it with the gore filter on or not. One of the greatest aspects of the game is the music and the world itself, and also the storyline. A very unique storyline, honestly I think it would make an amazing movie or animated movie. I loved the storyline. There are certain places you can find that trigger cut-scenes that explain the history pretty well. You can really get into the story. And the different factions in the game are pretty well done. Half way through the game you meet a new faction and the story for that part is pretty good.
But, the bad part, the actual game-play is not that great. If you just focus on the main "quest" you can finish the game in about 4 hours. The side quests are very repetitive such as "ambushing" enemies and firing motor cannons to defeat enemies. The only real purpose for doing these side quests is to earn "Fire Tribute" which you can use to upgrade the Deuce (Your car, also, you can run over enemies and shoot from your car. Forgot to mention that.) and to purchase upgrades for your Axe or your Guitar, Paint Jobs for your car and other such upgrades. There is also a hunting side mission where you hunt down a certain amount of specific creatures, and a racing side mission where you race Fletus around following a light marker shining down from the sky. (Kinda hard to follow some times.) Also, the stage battles are more strategic, you have to collect fans, build towers over fan geysers, then spend the fans for upgrades to your stage, and then recruit new troops. Then you have to order your troops to defend your towers, and to destroy enemy towers. Finally getting to the enemy stage to destroy it. This part of the game (Stage battles) is not very well designed. You don't have any type of map, so you can't find your troops easy, and it's just slightly difficult to play a stage battle.
But other then side jobs, The only thing else to really do it explore to find different parts of the world to free dragon spirits, and unlock all the legends and find all the binocular skulls to view all the landmarks.
Overall, It is a pretty decent game. The music and storyline make the game "Brutal" and extremely fun. Even though short lived. I personally beat the game in 5 days, even doing a lot of the side quests. (You get prizes for finishing all racing and hunting missions.Just letting you know. They are worth it too.) I would say go out and rent it for a week and beat it. Not much re-playability.
Also, the music is not censored even if you have the language filter on. When you get in the car you can turn the stereo on and off so I guess you can just turn off the stereo. I actually had a party and started up the game and hopped in the car so we could listen to the amazing music in the game. Lol.