Sounds are fucked up all over the place. Sometimes impact sounds are delayed. Sometimes there are no sounds. The crowd boos faces and randomly goes insane over nothing and then quiet a second later. Twice I've had Cole and King get stuck looping the same phrase for 1-3 minutes. They frequently will say the same phrase after one another anyway. I've had Cole's audio cut out during a cut scene, then resume mid sentence when it is over. I've had Cole and King's audio NOT stop during a cut scene, so it had 2 different audio streams talking over each other. Then you have silly things like using the real audio from shows, which means random Booker T talking when only King and Cole are at ringside.
Unrelated to audio, the 2K Showcase is sloppy as shit. Especially when you play one of the matches and then they show clips of the real thing, which points out how many little things they got wrong. MITB '11, for example. Cena has white shoes in the game, black in real life. Punk has a beard in the game, clean shaven in real life. For Summerslam, HHH's hair is down, while it was tied back in real life. Even worse on that front is that more than once, on the loading screens the 2003 Evolution era HHH (with dark brown hair) is used instead of COO 2011 HHH. 2003 HHH standing between Punk and Cena in 2011. THe loading screens all appear to be from the next gen version. They all look off as well, but not as bad as the models in this. Some look pretty good. Cena nad Punk both look awful in the Showcase. Everyone has the wonkiest eyes. Punk often looks like Cobie Smulders. Cena looks like Barney Rubble. Vince looked HORRIBLE and even worse in motion, which is really weird because Johnny Ace beside him looked pretty great.
Other issues in Showcase: Commentary that talks about things that happened after these matches. Time inappropriate shirts/signs. Bray Wyatt, Eat/Conquer/Sleep/Repeat, King of Swing shirts in 2011. Weirdly, the 2014 YES movement shirts in a 2011 match with Bryan, yet the audience full of NO shirts in an exhibition with 2014 Bryan.