You know what I was thinking. Aren't the people who played these games going to be in their mid-20's like me?
I don't know if I could go see this movie in the theater (making the assumption it is) without feeling like a creeper.
Hell, I'm 19. I played those games when I was younger. I wouldn't think it'd be too wrong.
I went into the Muppets movie alone. I also went in to see Wreck It Ralph alone. You should be fine, it's really not that bad.
You're still (in the states at least) a child. Once you're visually identifiable as an adult these things become much harder to justify.
Y'all are some incredibly self conscious mofos, go see whatever you want. If you look like a presentable human being going to see a movie, people won't give two shits about what you're seeing.