Summary: Got this for my 6 yr old son who naturally loves superheroes. Loves playing this game even though it is a bit challenging for him. He hates the tamer games in his age group (they receive his much feared and dreaded, "Poopie" rating, the death sentence to all toys so judged), so I am forced to buy ones that may be just a bit out of his skill reach. But he asks his older brother for help when he gets completely stuck so it works out.
Summary: Initially we bought this for the PS3. My son began playing it when he turned 4. He loved it so much, we bought it for the PSP when he turned 6. Yes, 2 years of playing this game and he's still playing it! So it has an incredibly high replay value for a child. The game itself has an excellent story line and is pretty linear. There is nothing confusing about it like some of the newer ones coming out on where to go or what to do.
Summary: this game you will not regret buying. it is fun, you play as hero and villan. It is just a matter of going to that area to play hero missions or villan missions. All the different batman and robin suits to use makes this game awesome.