The goal to get to the scary part takes too long due to how slowly the flowers fall. Perhaps you could ramp up the difficulty by making the game go faster for every 10 flowers you catch?
Also, I found a bug in which I had somehow sent the score to constantly go lower and lower into the negatives when I switched from the game's tab to this.
EDIT: I forgot to mention that the music doesn't loop, so after catching around 70 flowers, the game goes dead silent.