What videogame sequels you think ended up screwing what was done in the orginal?

[Alby_da_Wolf]

Myth III, not made by Bungee, was utter crap and it killed the series, that looked like it was growing, as Myth II was better than the first.
Tomb Raider III wasn't crap, but it started killing the series by overmilking it, it was the first to be released too early after the previous title (TR II was released quickly too, but usually this can be forgiven to the first and great sequel of a great new game, and TR II was the best TR ever). From third title on it started declining, back then only FPS and some sports games could survive overmilking.
Duke Nukem Forever: so many years after the previous and best of the series, DN3D, everybody expected nothing less than a masterpiece, sadly we were sorely let down.
Hexen II: not bad, but nothing to write home about, the sequel of the other storyline of the series, Heretic II, was immensely better, and probably the best of the Heretic/Hexen series.