Awesome game!
This is an awesome pick me up game.
I quit after getting to level 25 with 2 lives left.
I gave it a 5/5 and a 9/10 because though its AWESOME! it could be a bit better. I dont like the limited angles of fire, im not sure if that was done for technical reasons (bitmap graphics along with the camera angle would require a lot of different graphics for Mrs Clause's upper body) but I didnt really like it but I did get used to it.
My biggest problem with the game is the difficulty. Its WAY too easy. I got bored around level 12 or 13 when I still hadnt died and at that point, had seen just about everything in the game. If you were to make the difficulty higher so that the average play time is lower, I would be forced to play it multiple times to get all the upgrades and to see all the enemiies and weapons.
Which brings me to my last two critiques, lack of new things such as enemies/weapons. The other being some useless weapons (orange gift, the grenades) being VERY common and having such a high amount of ammo that I never run out contrasting the semi useful weapons such as the spread shot having virtually NO ammo. Its odd being able to run around and shoot infinite useless grenades but only having ~10 burst shots that I can go through super fast? Meh.
All in all, awesome game. I just wish it was a bit harder and gave me a reason to play it over and over again.