They buffed him, BIGTIME. They combined 99-2001 versions of K' to make a pretty damn good K'.
* Overall voice changes for everything. He sounds more subdued. Not as much yelling.

Normals:
* Most important change, he can cancel from his down B. And it cancels into itself, meaning you can do stuff like down B x 2, Ein Trigger. Friggin' awesome for high low mixups.
* Far C is cancellable. Good for those "FUCK I MISSED THE CLOSE C" situations. Also a bit faster.
* Close C doesn't have pushback, which means the second hit of the close C almost always combos.
* f + A comes out faster.
Specials
* Ein Trigger now properly combos off of light attacks, and get this - EITHER button can be used.
* Ein Trigger STILL can either be done in knockdown form (A version) and non-knockdown form (C version).
* Ein Trigger now has the old 2k1 Blackout followup,

* Ein Trigger now has a new Minutes Spike followup,

* Ein Trigger --> Second Shoot can combo from the middle of the screen with NO problems.
* A Crow Bites can super cancel off the second hit like in XI. Unfortunately it doesn't juggle, so wtf?
* Narrow Spike can only be done off of the D Minutes Spike. You can still do the Narrow Spike quickly enough so that the Minutes Spike doesn't even hit.
A version Ein Trigger has almost NO recovery. You get frame advantage if the opponent blocks it, and if you do it from far away you recover fast enough to block an opponent's preemptive punishment attempt. USE AND ABUSE.
DMs/SDMs
* Instant access to SDM chain drive + all his Ein Trigger mindfuck options = awesome.
HSDM (MAX2)
* Redone Crimson Star Road animation. Input is much easier and lenient. Instant access also makes it harder for people to predict. It has no "DM flash" until it actually hits. This is a good thing. Oh, and it now combos off an Ein Trigger --> Second Shoot anywhere. Meaning instant 50% life taken. Ouch.
Basically, 2k2 K' is a force to be reckoned with. Not scrubby like 2k3 K', not as cheap as 2k1' K (lol Minutes Spike juggle x n), but has some solid rushdown options and SPEED that he was missing from his normal 2k2 arcade counterpart.
PLAY HIM.