Drive Icon replaced by a 2002 cat simulation game

Solution 1:

This icon is most likely set by a file called autorun.inf located in the root of your D:\ drive. This file is normally used by CD-ROMs to add an icon to the disk as well as define autorun actions, such as launching a setup file or a menu. Starting with Windows 7, Microsoft removed the ability to automatically run programs using this file, but left in the ability to set the drive's icon.

Deleting the file or moving it to a different location other than D:\ should return the icon back to normal. You probably at some point copied the data from your cat game over to your harddrive, and might've copied it directly to your root directory.