Penn & Teller's Smoke and Mirrors is an unreleased Sega CD title with several short-games. It was to be published by Absolute Entertainment around 1995 but the company went bankrupt and the title never made it to market. A copy of the title circulated in 2005 and begun its cult following.
Desert Bus is the fan-favorite. A simulation title where you drive a bus in real time at a maximum speed of 45mph, these trips requires eight hours of continuous play.
Watch as CasualPokePlayer decides to make the longest Publication by aiming for maximum score of 99-points. This run takes 33 days to complete.
As the minigame is fairly long for a standard YouTube upload, you can grab the downloadable if you want to experience the full 33 day trip that the TAS completes. As the file is 171GB large, using an external download manager is highly recommended.