Many thanks @Cool_Down and @Jhei_Krauzer for the nice words. I found some difficulty when working on my first game, so I’d like to make a-z tutorial (from the idea to store publisher) basing on the simple game.
Yes, I love blue and green. Actually, look like these colour schema doesn’t attract all as the install rate is low (6-10%), only 6-10% players who viewed the game app store/google list installed the game.