I bought this game as an import from Japan because I am a huge fan of the anime but as a game this provides more enjoyment, as a whole this game is your standard beat-em-up Ds game but anyone who follows with the series knows that customising your favourite characters and pitting them against each other can provide hours and hours of fun and game time
pros: the lineup; now this game is based on Katekyo Hitman Reborn based on looking at the cover but this game spans the Future Arc and has some interesting side stories when you complete the main story; This game starts out with the standard Vongola crew but as you go on you can unlock other characters such as the Arcobaleno (the Fighting Babies) the Varia (basically the fighting force of the Vongola) and the Millefiore (the Future organisation that threatens the world with war) along with this you can unlock other characters such as the 10 Year older characters and the Kokuyo gang (the first enemies of the series)
cons: the main problem for me is that it's in japanese but that's understandable because this hasn't appeared outside of Japan
all in all this is a great game that hardcore fans would love, normal fans would like but for people new to the series it can be confusing