I just got an email about a free copy of Tekken 6 if you trade three from this list.
BlazBlue: Calamity Trigger (360, PS3)
Dragon Ball Z: Burst Limit (360)
Kings of Fighters 12 (360, PS3)
Mortal Kombat DC Universe (PS3, 360)
Naruto Ultimate Ninja Storm (PS3)
Soul Calibur 4 (PS3, 360)
Street Fighter IV (PS3, 360)
UFC Undisputed (PS3, 360)
WWE: Legends of Wrestlemania (PS3, 360)
WWE SMackdown vs. Raw 2009 (PS3, 360)
BlazBlue: Calamity Trigger (360, PS3)
Dragon Ball Z: Burst Limit (360)
Kings of Fighters 12 (360, PS3)
Mortal Kombat DC Universe (PS3, 360)
Naruto Ultimate Ninja Storm (PS3)
Soul Calibur 4 (PS3, 360)
Street Fighter IV (PS3, 360)
UFC Undisputed (PS3, 360)
WWE: Legends of Wrestlemania (PS3, 360)
WWE SMackdown vs. Raw 2009 (PS3, 360)