While I don't exactly want to play a bad game (although I guess "disappointing" compared to an amazing game can still be good), I'll go with Disappointing Followups just because I'm not interested in playing PC Edutainment and I don't think I own anything from Hot-B.
I didn't find Warrior Within that bad either. If there's anything really wrong with it it was having Godsmack score it. I can get past the character shift to the anti-hero dark side. But I also haven't played it since release.