I know that Gravity Rush, Resistance, Unit 13, Uncharted, and MLB do.
Not sure about the others.
EDIT: found it. It's those five, plus Little Deviants, Modnation, Wipeout, Hot Shots, and Reality Fighters.
http://www.futureshop.ca/en-CA/category/ps-vita-buy-2-get-1-free-promo/psvitapromo.aspx...