My mom had this one rule for R-rated movies when I was 13-15, she didn't care if I watched creature films like the Alien series, but she didn't want me watching stuff like Friday the 13th since it had people killing other people, my parents were also hesitant about me getting Soulcalibur since I was only 12 at the time(luckily my cousin got it for me as a Christmas present), but aside from that they didn't seem to pay much attention to the games I was playing, my mom didn't mind going with me to GAmestop so I could pick up M-rated games like Quake 4 and Perfect Dark Zero.
My dad used to spout that lame statement about how video games desensitize you to real violence, but he never actually bothered trying to stop me from playing them and he eventually must've realized what he was saying was utter nonsense, cause I haven't heard him say that in a long time.
Fortunately once I'd eventually convinced him it's no different to watching TV, he relented as long as I wasn't on it all the time.
A whole hour? Lucky! Haha, my parents limited me to 30 minutes a day. Yeah, try making any serious progress in Final Fantasy in half an hour. More often than not, the timer went off in the middle of a cutscene (right after a really hard boss fight, too), and off it went. No time to save
Haha wouldn't have stood a chance with the Metal Gear Solid games then!