strangest game event

my game is katamari damaci and my event is the entire concept...explanation

basically an event in a game that you think is just plain wierd AND does not usually happen in the series-

my event is from majora's mask and that is the alien attack..my reason ?well think about it when has Zelda even mentioned aliens or anything about space.? for me this was a huge mix up and the aliens even take the stereotypical cows and even brainwash someone if you fail to prevent thier invasion....for me this was a large difference from regular old zelda, then again so was the whole game........