King's Field II, accurate recreation, including VR

[Holy_Diver]

I've noticed while holding the spacebar to run, the player can turn with the right arrow key, but the left arrow key locks and doesn't allow them to turn left, while running. If the player hold spacebar to run and moves forward with the W key, they are freely able to turn left and right with the arrow keys while running.

That's normal for keyboards. You should invest in a controller, like the PlayStation's or XBox's. It's not meant to be played with a keyboard or mouse. In fact, I think twin handheld controls will eventually supplant the controller, but it can still be used if it has SIXAXIS sensors in it. I played it with full tracking for the first time only last week. It really strained my neck. I really was not expecting that.

EDITED: Just to be clear, your keyboard isn't designed for playing games with multiple inputs. You're pressing more keys than it can simultaneously sustain. Most keyboards won't. You have to look for "gaming keyboards" that don't come with PCs that aren't sold as gaming PCs. But King's Field is a controller game. It's a waste of time to play with keyboards.