Malicious got some decent coverage as one of the first PS3 ports for the Vita in Japan. However, the original been out on western PS3s for some time, and was even free on PS+ for a while, so I'm not sure if the Vita updated Rebirth version will get that much attention, despite the decent £9.99 price, extra levels, gravity defying combat and extra attention paid to it.
One game that should get an easier ride is Worms Revolution Extreme (£11.99), with the endearing wrigglers in action on the Vita for the first time. More details on this update here. Any of these grab your attention or are you waiting for the Vita's biggish guns to fire?