PSX Extreme writes: "Prototype has had a somewhat complicated history. Originally set to release last year, the game faced numerous delays after Activision got a hold of the game following its acquisition of Vivendi, which owned Sierra. As one of the games that didn't end up getting cut (Ghostbusters, Riddick, and Brutal Legend being the three that did), Activision gave Radical additional time, and I'm sure expense, to make Prototype as polished as it can be. So with all of this time in development, how come they didn't succeed? It's actually simple."