Borrows heavily but from the best to make something all on its own!!!
like i said it borrows heavily so lets look at what is borrowed,
the combat is similar to something to like UNCHARTED or Gears of War except you have ubercool electrical powers instead of guns, hold down L1 to aim and tap R1 to blast lightning from your fingertips or use the SQUARE, O or X to use special abilaties once unlocked like shockwaves, grenades and a rocketlauncher and they kick a**.
the platforming borrows from Assassin's Creed but its loads better where as in Assassin's Creed you have to find a specific way and you climb pretty slow, Not inFamous approach a building and keep pressing X and you'll be up the building in seconds and you will stick to things when you jump to them for easy travel across the city and can shoot from anywhere wether it be running, climbing, hanging, sliding, anywhere but gliding.
the open world is a bit GTA and the moral choices are like Red Dead Redemption or Fable if you're a Hero your electricity will be Blue and people will like you, stop to say hello, if you're infamous your electricity will be red and people will hate you and/or fear you, its interesting to see what happens in either way so recommend playing it through twice once for each path, as the powers get different twists, the story will play out a little differently, and you will get slightly different endings.
the only bad thing is the sewer levels they aren't good and theres plenty of them the good thing is every time there is a sewer level you get a new super power and every superpower in this game is good, not one is bad that and the graphics could've been a bit better.
if you have a PS3 and dont have inFamous you must buy it or even better if you had a PSN account before the hacking make sure this is one of the free games you download, INCREDIBLE 9/10