Very dull and not challenging...
Graphics-decent, added to the point of the game
Style-very repetetive, not hard, and the game got VERY dull after a while. Here's some pointers on how to help this category's score up big time.
a.)Make more challenging
-Have kids coming at you from both sides of the North Pole
-Have bosses of some sort
-More upgrades
-Have kids attack back
-More powerups
b.) Make more fun
-Add threatening notes from the bad kids every 5 levels or so, and make them somewhat humorous.
-Have a super-weapon or attack for Santa.
-Have a special defence on the North Pole (like a shield generator or a turret).
-Have sound effects for the kids flying back and/or create a battlecry of a sort for them
-And just as another idea out of randomness, it would be cool if you could make a grid map (say about 16 squares) of the North Pole and fight the kids with Santa and his elves on certain squares of the map. You could, persay, CLAIM squares with outposts, and defend your own and attack the bad kids' outposts. The squares could be random terrains (except for the North Pole, which is in the close middle of the map).
-Just an idea...
Sound-Pretty good, though it would be nice to have a varient of Chistmas music...
Violence-Decent
Interactivity-Decent
Humor-Thought it was funny to see the kids flying up in the air : )
-Hope this helped out in some shape or form. This game has great potential as a great game.
-But good job, hope to see more from you : )
-SuperDrummer146