For people with color recognition problems I made spetial settings - numbers on balls! But I agree - I can improve colors.
I was thinking about "no people will play with game". It has some handy features - mark the color, remember the ball. I've never seen it in other masterminds. Maybe it give me little chance.
Anyhow: I have to visit Ural. No internet for 20 days. Today I put 30$ to Adwords, set 12 Rubls (~ 0.2$) for a click. And location is all English-speaking countries include India.
First day give me 6800 shows and 300 clicks. All from India and 1 from USA))) Maybe becose I am "Indie game developer". I don't know if it good or bad. When I return from Ural I can say how many clicks turned into installs!
Well - one Indian click price is ~0.02$