Best original Xbox game besides Halo 1/2

[mundus6]

Since im primarily a PC gamer games, like Kotor 1 and 2 doesn't count since they are better on PC (especially 2) i have to vote for Ninja Gaiden Black. Still to this day one of the best 3D action games and the only way to play it is on one of the Xbox consoles, most connivent being with the xbox one.