Collect enough golden scarabs and you'll eventually be able to upgrade your health. There are also golden scarabs and crystal skulls to collect. Ryu and Ayane can both be upgraded by spending karma points during the story mode to unlock new moves and abilities.I guess the original NG3 had some sort of steel-and-bone quick time events? Whatever they are, they've been totally removed and replaced with a mechanic where, when your weapon glows red, you hold X like you're performing your UT and the character will temporarily become a whirling dervish of death.

I'll have to play more to see if I can pull off an air UT, but I kind of doubt it. If there's a character Kasumi's play style closely matches, it might be Ayane, but that's only for the fact that she's fast and uses short swords as her weapons.OK, having had more time to play the game, here are some brief observations: Have you played Kasumi yet? Any analog in previous games to compare how she plays? Does Momiji still have her double jump and air UT?

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