Now, I make no defense here of FFXIII and XIII-2's stories, but people who think that that's the WORST this gen need to at least see someone try to explain T3B's ending, because that's Toriyama at his "finest". I mean, at least in XIII you know what's going on, and in XIII-2 you kinda understand.
The Third Birthday is like MC Esher's famous "Perspective" painting, but with a plot. The more you look at it the less you're likely to understand it. If it has any depth, it's so much that you fall back to the top in it. Every time you think you've figured out what's going on, the game stops telling you that story and starts a new one. Except the old one has no ending and you're 3/f through the new one. And in that new one 3/f is an actual fraction. As you play it, you develop a sort of Stockholme Syndrome for it. Because Shimomura and Nomura and Tabata and their teams did such a good job with it you WANT to like it. It has bonus costumes you WANT to get. It's fun. But the story slithers back in there and ruins your feelings for it. You're like "Hey it's Yvonhe Strahovsky, so that can't be bad." except you can tell that even Yvonhe has no idea what the hell is happening and can't understand the bullshit that is her script.
Then you go crazy and you try to make sense of it by pretending it IS FFXIII. Because then you can just say that Aya is actually Lightning/Vanille, and Gabrielle is Fang. The kid is Hope, Kyle is Snow and Cray or Clay or whoever is obviously Sazh. And Boring is Barthandelus and the fat guy is a Queen Brahne in reverse drag.
Then the game french kisses you and shanks you at the same time. You're confused but kinda turned on and you can't distinguish between pain and pleasure anymore. You begin to think that Aya's kinda hot and maybe that shower scene is worth it until the game tells you how big of a creep you are for thinking that with the "reveal" in the ending. The FBI is monitoring every person who ever purchased that, checking their browsing history just to be sure.
After she's gotten on your good side, the plot invites you to abandon reality all together. Cause and Effect? You don't need that. Events not occurring chronological order wouldn't be that big of a problem if it weren't for the fact that there are no more rules of time travel and there is no narrative structure. It becomes like that episode of Ed, Edd n Eddy where they take away Jimmy's outline. You feel naked without it, lost, confused. Why does Hyde know Maeda's term for the High Ones when he just came up with it, you ask, then you remember that Aya being with Maeda is never even explained in the slightest, but before you can question that, Salvador Dali comes in and he just kinda takes a crap except it's a clock and you just can't shake the feeling that you've seen this plot somewhere.
Then you realize that Aya's struggle to save her sister is Lightning's struggle to save Serah's struggle to save Lightning's struggle to save Serah. You want to cry when the ending rolls around. You want to scream. You want to ask so many questions but you don't know where to start because you lost track of how things begin and end back in the third chapter. Dajh is there but now he's a girl and I wish that Chocolina stuff was just a rumor but you begin to understand why Aya was pointing that gun at her head in the promotional art.
Then you find out there's a secret movie and you don't watch it until right now.