In your computer. I'm in everyone's computer because I'm the matrix, hence the username.
So you will never see the real world...
Anyway I believe that I tried to get on Armor Games at school once but got caught. It was my laptop so they couldn't do anything. Mostly I get on about once a day at home though. I tried with my itouch but I didn't like it as much.
Whereever I can play. My school servers don't block Armor Games but since I'm on vacation it's all at home. Lucky me I had computer classes in both semesters (middle school).