Tell me about the worst sequel you've ever played

Dragon Age 2... dem recycled scenarios...

FlatOut 3......

If it counts, Final Fantasy XIII is the worst piece of trash that I've had the misfortune of playing.

Command & Conquer 4.

• Rushed, weak plot to wrap up the Kane/Tiberium saga (not that plot or storytelling was the strongest point of the series to begin with, but stuff like basically ignoring the 3rd faction that was newly introduced etc. makes this really weak)
• Bad concept of tying single-player and multi-player together in nonsensical way with skill level system.
• Rushed, undercooked completely new core gameplay. It has some cool concepts, but the implementation is a mess.

I still don't know why they didn't use the reworked core gameplay in it's own spin-off series (even if that is a post-Kane Tiberium setting), instead of just trying to do too much at once and failing at everything.
After all, that approach worked for C&C Generals. (Red Alert series was more running on a different gameplay balance).

Honorable mention:
Master of Orion 3. Which I couldn't even get into because the UI was so godawful

GTA2

It hasn't magic and feeling of first GTA.

My vote is Actraiser 2. They removed all of the overworld and strategy and turned it into a generic side scrolling hack n slash. It literally removed half the gameplay of the first one while adding nothing new.

mass effect 2

Risen 2 .. terrible sequel :(

Arcania: Gothic 4

Fallout 3.

Half-Life 2.

Fallout New Vegas didn't seem to hook me as well as Fallout 3.

Dragon Age 2, Splinter Cell Conviction, GTA 4, Aliens VS Predator (2010). It is hard to decide.

Halo 4.

Even if the campaign and storytelling are the best in the whole series, the gameplay is just... impossible not to hate.

In this order:
Crysis 2
Stalker Clear Sky
Oblivion
Tales of Symphonia 2
Age of Empires III

bloodrayne 2. for all the smooth gameplay bloodrayne 1 had, it was lacking in bloodrayne 2. The controls are derpy, and the movements are quite horrible compared to those of bloodrayne 1 which makes wonder why the hell they changed it so much. The only reason i can thin

Payday 2

The game i hated most as sequel was....there is no sequel i dont love .Always i buy them i play i pass my time after my work and dont car if it is bad or not like companies will give a sh it if i cry about how worse their games are.

Disciples 3

Crysis 2

Fallout 3

Call of Duty 249 Wrath of Genghis Khan.

Zelda II: The Adventure of Link - I was so disappointed when this came out. I couldn't believe they made it a side-scroller.

Dragon Age 2