Amazon and a few other re-sellers have Spy Hunter for Vita @ ~ $11 w/FS (order over $25 or Prime)
http://www.amazon.com/Spy-Hunter-playstation-vita/dp/B0088MVOD4/ref=sr_1_1?ie=UTF8&qid=1378656859&sr=8-1&keywords=spy+hunter
There is a few other Vita game at ~ $15 to combine with and get free shipping, I used Sonic All-Stars Racing...
http://www.amazon.com/Spy-Hunter-playstation-vita/dp/B0088MVOD4/ref=sr_1_1?ie=UTF8&qid=1378656859&sr=8-1&keywords=spy+hunter
There is a few other Vita game at ~ $15 to combine with and get free shipping, I used Sonic All-Stars Racing...