Hey, thanks for all the feedback! I'll see what I can do with the sprint button-- L2 is supposed to walk and L1 is for the slide (later in the game). Maybe I'll put them together or use the joystick tilt for slow walking.
As for navigation, I did intend to have as much free roam as possible. I'll see about adding more signposts, although the point is to explore freely and without much handholding.
The questions marks are totally a Spanish language slip-up, hah!