im glad that i bought prototype insatead of infamous although i dont have ps3 so i couldnt haveb bought infamous anyways. alex can move faster and is very agile, like u can almost float.., infamous is more like a shooter game because u have to throw electric bombs, electricute enemies from afar, fly with electric powers. ur power r pretty much limited for a certain amount of time then ud have to drain electric from electronics like telephone,etc... im happy with prototype u r more free and the best part is morphing urself into different wepons and kill ppl XP.. too bad i only played infamous for alittle while :(