Thought I would post this for another user who was asking.
Found these settings in my searching, recommended for playing games on PS3 and XBox 360
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AV = Game
Contrast = 38
Brightness = -1
Color = -2
Tint = 0
Sharpness = -8
Purecinema = off
Game pref = on
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I'd also like to point to
http://www.avsforum.com/avs-vb/showthread.php?t=1045175 for good Kuro settings info. Rather than just copy all the info from there.
YMMV.