The mini games...
The mini games. Oh god, the mini games. Really, why did we need to run away from a goddamn bulldozer? Why did the chandelier have to fall? Why did we have to balance on that tower? I know they were trying to make the game more exciting and intense, but those moments were all so goofy and unrealistic I was really surprised they actually were left in the game. Really took me out of the investigation.
Also on a similar note, suspects runing away and us having to chase and tackle them got kind of old after about 3 or 4 times. Why did it need to happen on every case?
Honestly though, going back to my earlier point, I do think that signatures are confusing as hell.