Wheatley - Portal 2

Description from original post (created 2011-08-31 06:58):

After making this skin I realized transparency doesn't work for skins in SMP.
If you want to use it in single player, it works perfectly, but you have to follow this method.

Download this file and rename it to "char" (without speech-marks)
Open 'Computer' and type %appdata% into the address bar.
Go to Roaming/.minecraft/bin
Open minecraft.jar with winRAR
Go to the mob folder.
Copy the downloaded file into here, replacing the old one.

Sorry for the complexity but I hope you still enjoy the skin. :P