Lab Rat

This is a download-only game in which you control a rat who is required to run around a maze until he finds the exit. The game offers an enormous number of mazes to complete, and the company's web site offers various tracking "charts" in which players can post the different maze variants they've completed, as well as other bragging points. Some interesting customizable options are also included relating to sounds as well as adding your own photos to the game's background.