Let's see: The flowers need to be buffed. Give them a cumulative bonus or somethig. Holding space needs to be nerfed. Standing on half the field, running from side to side, you cover everything. The difficulity seems to stop scaling at some point. Might want to fasten the bombs after you hit the amount limit, or something.
The game is quite good, but we reach the upper difficulty limit too soon, I think. After score 10000, I didn't see any evolution in difficulty, and not a bomb had yet to touch the ground. I did go up to 50000 for the sake of it, but I was pretty bored passed passed 30000. Killed my self by letting a bomb drop directly on Kim once I reached 50000. I think that the difficulty should continue to progress a bit more to make the game more entertaining.
That said, I found the combo names quite funny, notably the x5 : Koran Combo