It's never obvious what to make of delays in video games. Sometimes it's simply an indication of a problem production that ends up looking out of date before it's even released. Other times though it's simply evidence of ruthless perfection: thankfully TimeShift seems to be the latter. At first glance it seems like any other first person shoot `em-up, with some technically impressive but artistically ordinary visuals. What makes it unique though is the gameplay, with the best use of time travel in a game since Prince of Persia.

The story of the game involves the unlikely named Aiden Krone go back in time and changing history to suit him - kind of like a more evil version of Back to the Future, Part II. However, the time travelling doesn't end there as the special suit you're strapped into to chase after him also allows you to stop, rewind or slow down time whenever you want. Since Krone has got his own version of the same kind of time suit many of the enemies can't even be properly seen under normal conditions because they're moving too fast, but there are more subtle uses for the rewind and stop powers. Slipping past guards or running through a burning building becomes child's play, while stopping time, running up to an enemy to grab his gun and then nipping back to cover to shoot him with it is just one of the game's unique pleasures. Even if Doctor Who wouldn't approve.