The crazy pivot-move-run style was adopted in Resident Evil to make the games more difficult. As RE3 proved, it's far too easy to play when you can easily dodge a lumbering zombie. RE4 got around this by making movement immaterial, and swarming Leon with hordes of enemies around every corner, all of whom regenerate when he leaves.

But it's the Legendary Dark Knight Sparda! Not to be confused with the German bank of the same name! How else would you know the difference?