Recently, I purchased a copy of Majora's Mask for the Nintendo 64. When I first put it in it seemed to be working fine. I started a new game and began playing, but after around 10 minutes the game just stopped responding to my controller. I reset the system, but that just made it so the game wouldn't respond to my controller at all, so I was stuck on the menu. I tried cleaning it with alcohol, but it didn't help at all. Every so often the title will respond to my controller, but I'm not able to make it past the first 5ish minutes of the game. I don't want to try opening it just yet, if there's a simpler option and I don't want to just buy a new copy yet, either. Any advice, guys?