Superb graphically (for hardware from 2005, as I recall), and even more beautiful since the MAJ 1.2 eliminating, among others, issues related to the clipping, the aliasing and tearing (the flashing respectively the so called "stair" and the tearing of the image).
The game itself is excellent, with a lifespan bordering on indescence and gaming pleasure constantly renewed by a ton of activities to do such as hunting, catches and other random events, which I will not mention here so you do not spoiler.
In the end result is a superior game to the third installment and in all areas, with some adjustment to the gameplay including driving (automated or manual to the goal, made the power draw while driving -ect).
Presence also of flying vehicles, among the plethora of land and water vehicles already present and still in the game in this opus (jet-ski, ATV, cars, trucks -ect).
The level design also underwent a facelift of choice, with a discount to amazing levels and the appearance of climbing, which contrasts with the flatness of the previous episodes environments.
The mountain therefore takes définivement ascendancy over the sea, including more diverse activities and a more interesting gameplay that follows.
Finally, a game to buy absolutely, for the last pearl that the Xbox 360 has had to offer.