I just rented the game and after playing it for 2 hours I am over half way through quite sad you think (and I do too) but there is a lot more to this game with side games, and replay value it is pretty solid. The game doesn't feature an online function but does have a Multiplayer LAN setting allowing those who own more then one ps2 thats hooked up too play sorta I.Link style.
The Graphics is one of the main points that caught my eye they do not feature the usually rugged bad asses you normally see in FPS games but cartonish and silly characters that really gave the game a positve and fun mood... 5/5
The Controls another determing factor of a good Fps, which this game doesn't fully exploit but it is not anything away from the norm and that is kinda the reason I look down on it, Also doesn't feature a large variety of control styles 4/5
Sound is another outstanding feat of this game it contains moving sound that really makes you seem more in the moment of the game 5/5
Gameplay, at first I felt oh yeah. I am out of the brainless shooting so many other fps are related with because this game does seem to go over the top trying to give it some meaning to why your shooting these ppl but in the end it feels more like a pretty face on an overused diaper

... No denying it though the game has many hours of fun gameplay for those that think they need to possible uncover every little stone and an enjoyable moment for those looking for some game time 4/5
Overall Score 4/5 (Rent or Buy shouldn't be dissapointed either way)