Slow loading times, unresponsive controls during some of the more hectic levels, not able to skip the obnoxious stage fly-by during the final level, and some other annoying bugs. The developer should have used the time spent adding the useless social networking features to make the game more fun instead.
Great concept for a game, even if it kills replay value. Would have given it a 5, but end boss and true ending (why did you have to use that awful meme?) were a bit disappointing. 4/5
 "The End"){kind=icon}
 "You Only Live Once"){kind=icon}