Got all achievements :D
Amazing game. Shame it doesn't look like there's going to be a follow up since this was released about 4 years ago and the dev hasn't said a word since! I'd pay for a game like this though :)
I understand that it's supposed to be a grind. I love it and I still love ducklife, and i'm looking forward to the next one.
However there's literally no purpose to the grind... There's no story that you're rewarded with for beating each area, that's what this game is missing. Substance.
Also, if the hard badge method other people suggested didn't work for you - Try mine.
Song - Letting go (Of course)
Shapes - Floral (They are the largest)
Pattern - Radar (There seem to be twice as many notes on this mode)
Motion - Wave (Wave notes disappear the slowest)
Your idea here is to collect yellows and purples, and ultimately NOT hit the reds. In the process of collecting the yellows and purples you will hit the other notes, there are ALOT of them on radar. If you hit a red, you'll probably not make the 5000000.
 "Tesla8"){kind=icon}
 "SeppuKuties"){kind=icon}
 "Book of Mages: The Dark Times"){kind=icon}
 "Legend of the Void 2"){kind=icon}
 "The I of It"){kind=icon}
 "Idle Lottery"){kind=icon}
 "Rebuild 2"){kind=icon}
 "Fat Idle"){kind=icon}
 "The Last Door - Chapter 1: The Letter"){kind=icon}
 "DuckLife 4"){kind=icon}
 "Dragons Flight"){kind=icon}
 "Brawlin' Sailor"){kind=icon}
 "Music Catch 2"){kind=icon}
 "Deep Sleep"){kind=icon}
 "Ghostscape"){kind=icon}
 "Dillo Hills 2"){kind=icon}
thank you for playing the game. the purpose of the multiplier is to unleash the golden dragon. keep playing and you'll see :)