Here are three games that are out on mobile devices. Yeah, I wish I was more enthusiastic too.
Your objective is handily spelled out right in the title of this arcade game. So long as you stab the right guy and not the wrong guy, you're golden. The guys get faster and harder to stab as the game progresses.
An Alien With a Magnet (iOS)
Yet another physics-based puzzle game which uses magnet and gravity mechanics. The gameplay, unfortunately, feels sluggish and not super fun, which holds this back from besting games like Cut the Rope and Angry Birds Space.
Ultima Forever (iOS)
There are plenty of hack-and-slash RPGs on iOS. Ultima Forever is not one of the best ones. It's by no means bad but weak controls and dull gameplay leave it square in the middle of the pack. Ultima fans may dig all of the franchise references, though.