Loved the katamari feel to the game. Wish I could have gotten enough points to start collecting lampposts and buildings! The secret passage to the diamond was cool.
Since you're running around collecting gifts you always don't get to see the funny names you provided for them. On the end screen it'd be nice if you could roll over the gifts (or cursor through them with the arrow keys) and see the large version + the name (and maybe their point value).
Great job with the time given!