It is nothing to worry about if it only happened this one time, if it continues then see a doctor
Why do my eyes hurt and why do I feel dizzy and kind of light headed after I play a video game?
It depends, if it happens every time you play the game
You probably just played it for too long. If not, it could be because it has too much action in it. I'm not too smart about video games though so you should probably just ask an adult or doctor.