1 (-) - Nintendo DSi Browser
2 (+6) - Mario Vs. Donkey Kong: Minis March Again!
3 (-1) - Paper Airplane Chase
4 (-) - WarioWare: Snapped!
5 (+1) - Bird And Beans
6 (-3) - Dr. Mario Express
7 (-2) - Photo Clock
8 (-1) - American Popstar: Road To Celebrity
9 (-) - Mighty Flip Champs
10 (-) - Art Style: PiCTOBiTS
11 (-) - Real Soccer 2009
12 (-) - Master of Illusion Express: Deep Psyche
13 (N) - Mario Clock
14 (+1) - Master Of Illusion Express: Funny Face
15 (-2) - Clubhouse Games Express: Card Classics
16 (-2) - Animal Crossing Calculator
17 (N) - Mario Calculator
18 (-1) - Master of Illusion Express: Shuffle Games
19 (-3) - Brain Age Express: Math
20 (-2) - Mixed Messages

Big Increase: Mario Vs. DK (+6)
Big Decrease: Brain Age/Dr. Mario (-3)

Debuts:
Mario Clock (#13)
Mario Calculator (#17)

Dropped Out:
Art Style: AQUIA
Animal Crossing Clock

for Aquia

LOL the Nintendo DSi Browser is number 1.

I knew Mario vs Donkey Kong would sail quickly to the top, and I wouldn't expect anything to knock it down in the near future.