My biggest beef with Dreamfall was the treatment of the character April Ryan. Throughout the first game she slowly discovers her ability to shift between the two worlds. You have no control over it, since her ability is purely reactive and only activates during key points of the game.schtingah said:
I always hoped that any sequel would capitalize on her ability to travel between the two worlds, where she'd mastered her ability and could shift between them at will, thus maximizing any exploring potential. It also could have opened up the possibility for some unique puzzle solving that required frequent trips between the worlds (like needing to retrieve a technological item to use in the magic world).
But no. April was put in the backseat for the sequel. She's seemingly lost her shifting ability and turned into an angry, bitter freedom fighter with issues. You also next to never played her at all, since 90% of the play time was devoted to this Zoe character, who I simply didn't like.
I also didn't appreciate their "bad-end" style cliffhanger ending, especially since they couldn't guaranty the development of the conclusion, right away. "Yay! You finished the game and everything's shit! You accomplished nothing and lost everything getting there! Now let me throw out a vague foreshadowing about how you might be able to fix this
-The end"