User blog comment:MattBoo 2/New Year's Eve 2013/What I Got for Christmas/@comment-11402229-20131231152424/@comment-8471655-20131231153329

That's funny, around summertime I had that same glitch for me even though I was using the same computer and browser I am using right now. What browser you use? 0-0

Well, sometimes, my mom and I play New Super Mario Bros. U together. Is what you're talking about technically what you mean by "multiplayer"?