Ridiculous, difficult and yet so strangely addictive despite the lameness.
I'm a Gundam fan, I enjoyed going through Official mode as you sort of fight in a character's perspective and it's story sort of based off its anime. However the difficulty was horrendous, the sad part is that it's on normal. It got worse when I decided to play it on easy. And still no noticable improvement on trying to complete a mission when the bosses still act like complete cheap !
The camera angles are absolutely terrible, the AIs are annoying, collecting items and obtaining character abilities are frustratingly monotonous. And yet, I still kept on playing. Why? Because of the achievements! As a student, I'm more grateful that there's no on-line multiplayer achievements as I can't afford to spend for Xbox Live. That and also for the lack of internet connection. (I'm not footing 60 quid for a wireless adapter!)
The Original mode story plots are unbearably, stupidly lame with horribly unfair mission objectives (e.g. if one of your Ace dies then it's Game Over) that on some stages could not be completed without my friend to help me out and even he found the game absolutely terrible. The controls are not up to scratch and getting what seems to be the near impossible achievements makes the game into a no-brainer, monotonous, droning of constant destruction which should be compared to sending scraps to the conveyor belt straight to a furnace.
Both my friend and I could have spent better time trying to achieve Gears of War completion on hardcore or doing our dissertations than trying to achieve 1000 points on this game and still not even been able to! And even Prince of Persia took a tiny fraction of time to get 1000 points!