Kick A$$
I played the game on normal and found it very very easy! Hardly dies much and never ran out of ammo or skill points to buy ammo and weapons etc.
The environments are really very spectacular andyou get a great sense of scale from them although of course you cant explore anything because the path you are lead down is very narrow. Even when you have to kick an object to clear the path the game tells you that you have to kick the object so basically you dont ever have to pause and look about and wonder how to progress as everything is spelled out for you.
I thought the graphics were very 2000 AD comic inspired. Was a bit buggy at times with the sky disapearing and going black. but on the whole it ran smooth, loaded fast, played great, was just a great fun game and a no brainer which is exactly what I wanted to switch off to after a busy day.