Wouldn't it be a blast if we were able to obtain items during a match? Aside from special moves, you're able to collect a large variety of different things like: time bombs, poison gas, traps, invisibility, giant shurikens, etc.

Now characters in Mortal Kombat don't all have a set number of special moves, some can have two while others may have seven. I think this could both even the playing field and possibly give an advantage, depending on what you're lucky enough to find.