Bioshock 2

"Uh oh, Mr. Bubbles...  Big Sister doesn't want you playing with me..."

Let us pretend, for a moment, that all sequels improve upon the original, rather than simply using an existing title to cash in on an easily satisfied market base.  Once you're ready to step out of that fantasy world, we can talk about Bioshock 2. 

Strictly speaking, Bioshock 2 isn't bad, but neither is it Bioshock the first, which is really its greatest criticism.  Although, plenty more criticism to go, after the jump!