More than 50 characters... So what? The simple things that should be corrected by them just weren't
But the last thing shall really bores the ones who like to play with all the characters (...I mean, who would not?). It's the weapons. Ok, there are very good weapons in this game but who paid attention on all of them, knows... they are repetitive! (tam-Tam-TAM!)
The first thing you see it's the same weapon carried by two guys, liu kang and Cage, the nuntchaku (or anything like that). God tham it! Liu kang have all these chains in his arms and he can use it as a weapon! It had to be just equal to jonny cage... but there are more! There still have some weapons with the same stances... take dragon teeth (Kira) for example... you'll notice that her daggers, Kano's knifes, and Hsu-Hao's sunmon blades are exactly the same! Try to compare them!
Right, they might be just little details that are almost nothing compared to the great things on the game, but when you notice'em you start to think... "The end of they're legacy shouldn't be perfect?"