The idea was original, but not good...
The first two seconds you're playing you actually expect a lot from this game, but it just disappoints. The steering is really annoying. The graphics and storyline were cool, but the rest wasn't so much. If you just removed steering, make it like some kind of 2D platformer, it would be pretty nice. More variety besides helicopters and men would be nice too, perhaps an extra element to help its monotone-ess. Power-ups can never do a game wrong, and perhaps other stuff such as not being able to kill some troops in one bite?...