Colored Water And Pin is a standard online "pull the pin" game that requires that a player fill glass vials with colored water by pulling a pin from above. Each new level becomes increasingly more difficult as the player progresses through the game.
The player beings gameplay by pressing a green button on the home screen. It's important to note that the game provides no settings options to turn off sound, which means that a player needs to instead modify their device sound settings.
From the home screen, the game opens to a Levels screen that displays a vertical rectangular background, a yellow button labeled with the number one and 29 pink lock icons. The player merely needs to tap the "1" button to proceed to the Level 1 screen.
On the screen, they're shown a liquid held in place inside of a channel or funnel with a golden pin. At the bottom of the screen, the game automatically moves a round glass vial into position to catch the liquid. The player simply pulls the pin to release the liquid into the vial.
It's important to note that this game requires a player to have excellent timing and use strategic and logical thinking, especially as the levels become more difficult.