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

Superman 64.

Weeks and months of hype (the era of print gaming journalism), Blockbuster stocking 100 copies on launch day for "guaranteed availability" etc.

Then I finally popped the cart in, and this thing was so bad it just defied all logic. Horrific controls, shitty graphics, unclear user interface and objectives, terrible draw distance. Timed level segments and insane difficulty.

There might be "worse" games but I have never been more disappointed in a release than Superman 64.