1. Raiden
KonamiLove him or hate him, it's fair to say that the introduction of Raiden stirred up some controversy. At the very least, it was a big surprise. Having revealed Metal Gear Solid 2 with the return of Solid Snake at E3, gamers were pretty stunned to find that Solid Snake wasn't actually the main protagonist of Sons Of Liberty; instead, it was newcomer Raiden. In the Western world, he was pretty poorly received. He has a slightly androgynous appearance (this is even referenced in game when the President grabs his crotch and reacts with surprise that he's a man) and he has a cocky attitude to boot; he spends most of the game bragging about his success in Virtual Reality training. Apparently, reaction to Raiden's introduction was neutral in Japan but in the rest of the world, people were miffed that a new character was taking the reins. Despite what you may think of Raiden, you have to agree that introducing a brand new protagonist into the game and shunting your main hero off for a side mission (and a supporting role) is both a bizarre and bolshie move. Of course, there was nothing that the gaming public could do and Raiden has pretty much come to be accepted nowadays (it helps that Metal Gear Solid 2 is a phenomenal game; Raiden's kick-ass cyborg appearance in Guns Of The Patriots helped too) as shown by spin-off Metal Gear Rising which features him as the solo star. Yes, he might have angered some people at first, but let's face it, the series just wouldn't be the same without him.
Are there any other moments in Metal Gear Solid that have left you scratching your head? Any storylines or ideas that you felt were just too farfetched? Leave your thoughts in the comments below.