What's the worst video game you've ever played?

There are a lot of titles in the industry, and God knows there are a hell of lot crappy ones.
While excellent, innovative, artistic and fun games exist, have been praised, played and replayed, championed and have engraved their mark in stone, there are pessimists, such as Seanbaby or James Rolfe who have dedicated much of their time to the worse games of all time. As a like minded pessimist, I wish to explore these horrendous messes.
Bad gameplay, a plague of glitches, franchise milking, (Friends video game, seriously?) outright lame ideas, asinine concepts, or simply, an unfortunate bad turn of programing, idealization and presentation gone wrong…these have made their ways into the history of gaming, and now, you may contribute.
What’s the worst video game that you’ve ever played? Please explain your choice.