The Games that Inspired "Target Countdown"

The Games that inspired my Game were Time Crisis and the many online sniper Games on the web.  I enjoy sniper games but they become very repetitive and mostly only have one objective, shoot to kill.  I wanted to bring the timer idea from Time Crisis into my sniper game to give that added pressure and extra dimension of difficulty that most sniper games don't have.

Graphics wise, I'm hoping to make the game in stick fashion, which is a commonly used technique but often produces the most enjoyable sniper games.