:ph34r:
The only difference I could see between FO/TOEE and NwN/KOTOR is this.
The first two require a certain rules knowledge. If you have that , then both are a walk in the park. If you dont then you will struggle to make sense of what is going on. FO is particularly easy with some basic math , where as TOEEs movement lacks the precise nature that such a game really needs.
KOTOR/NWN dosnt require this so much , it's more forgiving allowing you to learn as you go instead of reading a 200 page PDF.
Do designers want people to have to read 200 page PDF's just to play a game ?
To bring it back to Ninja Gaiden I felt it was similiar to TOEE in that that game upto that point had not provided you with the knowledge you needed to beat that encounter. Prior to that the game had been easy so it was like slamming into a brick wall.