Another good one :)
Once again, the biggest strength in the game is the graphics and appeal of the animation. You've managed to get a sort of Nintendo-ish feeling with the cute sound effects and colorful backgrounds, you know what I mean?
Anybody could have come up with this concept, but you've got a knack for making your games unique. The screen shaking when you get a high score, the little messages at the bottom after a round ends, the smooth and flowing animations - It all comes together for a pleasing presentation and really shows off the fact that you didn't rush through production to get the game done as fast as you could. I can tell you probably had a lot of fun creating this. I honestly can't wait to see what other games you come up with in the future :)
There were really only 2 negatives I can think of besides the game being a bit lacking in depth. (I know its only meant to be a fun little game though). 1) A restart button would have been nice for when you are doing bad and don't want to finish the round. 2) The English translation could have been a bit better. I noticed a few awkward sounding sentences, but its nothing huge.
Besides that, I loved everything! Especially Bad-Atom's "Door Number 3" that plays in the ABC round. It created the perfect atmosphere :)
Keep it up!