Let's face it: JPEG compression, even at 60%, sucks for such a pixel-intensive wallpaper (jpeg is best for smooth color transitions, like photos.) Also, GIF sucks worse because it's limited to a 256 color palette.
ALL HAIL THE POWER OF THE 24-BIT PNG!
Bonus! Original wall for comparison: 1280x1024 (originally from Namco's website)
