This is a very fun puzzle game
I really love how complicated seaming it is and what a different and cool way it makes you think.
A few suggestions: I was wondering if you could, instead of score (or along with), show a percent complication statistic or a 5/300 cells statistic so you quantitatively view your progress as you spread you virus. Also, more after the level statistics would be cool like "average cell gain per turn" where the statistic is on average how many cells do you infect per turn. This is a very cool game and I'm really happy that you finally uploaded it.
Also, I think that a different mode would be cool. So you would have a smaller level with less cells and you'd have numbers next to each color. The number next to each numbers displays how many times left the player has to use that color before wining the level. So it would be just like the regular game, choosing the right color next, but at a smaller and more fundamental level. I think that would be pretty cool.
So, good job on the game once again. :)