The Japanese action gem Malicious is finally making it here to the US on July 24th. I'd say that unfortunately it's not on the Vita, but I'll gladly take a PS3 version if that's all I can get my hands on.
Meanwhile, the Malicious "Rebirth" version will release some time this Summer on the PS Vita in Japan. Malicious originally released in 2010 to wide acclaim, but again, only in Japan.
Heath, where art thou?