Interesting facts about infinites in UMK3.
There are 23 characters, 3 of which have universal infinites, that with timing can be done to any character, however, even with these infinites, the practicality is seldomly there except for Kung Lao. Stryker's infinite can be done relatively often, but he is ranked mid tier, and Shang is very close to last, with a difficult infinite.
Reptile has an infinite that works on just about all the characters he'd need them to beat in a push comes to shove skill match.
When it comes to MKT however, the universal infinite ratio jumps.
Noob has two infinites that are plausible on many characters. One is a break infinite that only takes about 3 reps, but significant positioning and a little timing. His normal inf, Teleport, LP, LP, is very easy.
Rain can set up his infinite off just about any attack, although it's not quite so easy to do.
MK1 Raiden has a ducking LK infinite that can be done on anyone in the corner.
MKII Kung Lao has a semi infinite cross sceen similar to MK3 Kung's, that can do enough damage from a midscreen start off a combo to end the round.
Baraka has a corner infinite that can be set up off his blade spin, and if you aren't close enough to the corner at first, you can do another blade spin to position it better.
There are other things here and there but they are insignificant. That however is enough to show the added characters were completely untested. But let it be known, the only thing that hurts MKT are the added characters and not the actual gameplay. The game is faster yes, but if you play it on an emulator, you can adjust the frame rate to make UMK3, and you will see how much the same it really is.