I call them hop-backs sometimes myself

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Anyway, yes a normal back+AB in KOF 99 (normal meaning it still has its hop-back) is verrrrrry useful with grapplers. I can not count how many times I've done back+AB->Maxima Revenger (HCBx2+Kick)...
While we're talking about KOF 99, what is with some of these funky Armor Mode combos I've seen? In these combos, you can pretty much combo into AB+(button) and repeat for an infinite. They're pretty hard to land though as you have to juggle into them, and I always miss the first one (I've tried this combo with Kasumi and got it to hit ONCE out of trying at least twenty times, but messed up the last part:
B+C+D, close D, close forward+A, HCB+A, AB+(button) 5-6 times (it's in a KOFChina video, the KOF 99 all characters 100% one), (Armor mode ends,) QCB+B/D). You have to be really precise to hit while the opponent is juggled and FALLING down most of the time and it's not very easy for me. Practice makes perfect.
Also, why does it seem so darned hard to call out Ryo as a striker after a DM and throw the enemy off the ground? Are the combo videos I see using hacked ROMs? Every time I call Ryo like that, his Kouken hits too late and the throw won't work.