This maze game seems like it has a mathematically optimizable "best route". Also all of the sound effects are stolen pretty much, including a Commander Keen noise that was developed entirely in-house at ID Software, and the Windows 3.1 startup sound. It is a lot of fun though, and gets cool style points.

Start (Level Selected) - 00:56

End (Final Level Clear Text Appears) - 24:59

Total - 24:03