Not Running on iPhone 3gs – AE 3D Motor: Moto Bike Racing,Road Rage to Car Run Review

I download and sync on my phone, but it's not runnig on my 3gs, ios 4.3.3. it gives me a msg that need a iphone 4.But Dev team says it is compitable with 3gs. Can anyone tell me whats wrong?
Review by Sujon_5152 on AE 3D Motor: Moto Bike Racing,Road Rage to Car Run.