When you've got pixels as big as humans, you're going to need a cinema sized display made up of at least 200 pixels.  Take this Human Tetris recreation in Baden, Switzerland.  Sure you' get a super small fraction of a pixel per inch but that doesn't make this any less cool than playing Pac-Man on your high res iPod Touch.  Complete with human sounds, this version of Pac-Man probably took hours to shoot.  Was it worth it?  You be the judge.  If you liked this, check out Human Space Invaders.