Enter The Matrix PS2 - Was working at a game magazine at the time, and the guys who reviewed it raved about it. It's terrible, awful, no-good, and I paid full price (less 20% discount).
Honorable Mention:
All-Star Slammin' D-Ball PSone - I figure, a new dodgeball game -- how could you mess that up? Lame city, man. Single-player is a joke. Not worth the $10 I paid.