From the PlanetXbox360.com feature list:
"Today is leap day, an event that only happens once every four years. It gives the masses a special opportunity to enjoy one more day of life for the year. Lets be honest, though. Do we ever take full advantage of the day or is it treated like any other day? Unfortunately, as gamers we need as many extra days as we can get. We’ve seen hours turn into days while trying to beat just one level of a game, and all of the character deaths act as wasted time in the pursuit of beating that one stage. Below are a list of games and levels in which we’ve all wasted our days on and could be considered as some of the most painful video game levels ever created."