Enable the Secret Start Screen Animation WINDOWS

Top 10 Secret Features in Windows 8Expand
When you first sign onto Windows 8, you get a very cool flow-y animation of all 

your tiles filling up the screen. After that, though, the Start screen has a much 

more toned-down animation. If you want to enable the cooler animation for 

every launch of the Start screen, you can do so with a simple Registry tweak

You can also customize certain settings for the animation too, which is pretty 

cool.