Amazing, amazing game. Great music and graphics, amazing how such a simple mechanic coupd create a game with so much depth. The online leaderboard is a great addition as well, if I had time I should have added it to my game as well since it is based upon the same premise of maximising your high score. My only gripe is that to me, it doesn't really fit the theme that well. Like, I know chaos is part of the game, but to me the main theme is not about the chaos, but the awe and wonder of scientific discovery, that something so simple could produce something so amazing.
I think if you decide to expand the game you should add more music as well, I love the Interstellar-esque vibe that the game gives off.
I think it is possible to math out the theoretical maximum score you can get with only 60 seeds, so far I haven't been able to make it to 4 digits but I'm curious as to what is the strategy for that.
Update: I just realised there is no theoretical maximum, theoretically with just, say, 2 red, 2 green, and 2 blue, you can let 1 red eat blue, 1 blue eat green, and 1 green eat red and so on until it forms an infinite cycle, the only limit being the time limit and the possibility of one colour overwhelming the others.
Update 2: I managed to break the 4 digit barrier and make it onto the leaderboard with a score of 2093. I think it would be nice if you showed us the score for the other 2 colours as well, since there were a few attempts the balance was tipped the wrong way and I ended up filling the screen with greens/blues instead of reds and was curious how many of them I got. If it's possible you can explore updating the count for each colour as the game progresses instead of counting them individually at the end.
Update 3: I managed to get 3rd place with a score of 3299 :D