Furthering the notion that there is no situation, real or virtual, that cannot be enhanced by the addition of Koji Kondo music, I give you "SuperField Bros. 3", the perfect marriage of heavy weapons and heavy whimsy.
YouTube video craftsman DerpShark took the music of Nintendo classic Super Mario Bros., laid it over some Battlefield 3 gameplay, and with a little creative editing produced this wonder of a video. If this were the actual BF3 soundtrack I'd probably still be playing.
And no, ten times isn't an arbitrary figure. I counted.
SuperField Bros. 3 [YouTube]