Hard badge goes as follows: Letting go, floral, straight, fixed, off. at the start, keep your cursor along the top and drag left and right, back and forth. The bigger the multiplier, the more cautious you want to be (going lower helps). Make sure you get a Yellow Madness early in the game. I got 5,720,440 just by doing this.
 "Elephant Quest"){kind=icon}
 "Music Catch 2"){kind=icon}