I loved this game in the arcade, but doesn't seem to carry over all that well for the iPhone. Can't imagine any FPS would.

 he App: Time Crisis Strike, by Namco. Played by many of us with light guns and stomping pedals in the arcades of our youth.

The Cost: $6

The Verdict: Fun enough, but just not the same, man. The great thing about Time Crisis in the arcade was that you felt like you were actually ducking behind incoming bullets, molotov cocktails and knife-wielding crazies. That, and the real gun kicking in your hand (if it wasn't broken) were the essential gameplay elements.

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http://i.gizmodo.com/5147417/time-crisis-strike-for-iphone-lightning-review