Could be better, could be worse
Just because the physics on the tomato are good (and they are!) doesn't make them enjoyable. The sluggish speed of the tomato was too slow compared to the hectic activity of everything else.
Also in the instructions, it would have been better not to have said "You don not know why they are there nor does it matter." The reader doesn't typically demand sense from such a simplistic game, but by addressing it, you focus attention to flaws that could otherwise be swept under the carpet of suspended disbelief.
It's very innovative for a "dodge falling objects" game. I liked how the gems made the game more interesting. Unfortunately, the slow tomato made these nearly unavoidable, and put the coins at a much lower priority. I also liked how the game progressed with missiles, etc.