Man, I friggen HATE people who say "First!" "Second!" "Five-hundred-eighty-fourth!" I mean come on! Who would count that? And seriously.. make the first levels a little easier. Get the cats to work together, even though it's not that original. All you're doing is playing the level twice and trying not to die or else you'll have to play it twice AGAIN.
Play level 1 for a while with a maxed plane till you have about $50,000. Then move on and do the same thing. You'll get an easy $200k when the 3rd round comes. Then.. Just max out again and try to hit 10k distance. It's pretty easy. But it takes a bit of time..
x.x The glitch where on either side of the screen the ball gets stuck, and you can't let it fall and you can't really move it. FIX IT! And maybe I'll give it a 2.
Beat it finally, but I've got to say, during the last boss.. Your energy should be able to replenish faster (only during the boss) and you shouldn't be able to use "Bomb". THAT'S a challenge.