For dozens of select Game Boy games, the Game Boy Color has an enhanced palette built-in featuring up to 16 colors - four colors for each of the Game Boy's four layers. If the system does not have a palette stored for a game, it defaults to a palette of green, blue, salmon, black, and white. However, at power up, one of 12 built-in color palettes is selectable by pressing a directional button and optionally A or B while the Game Boy logo is present on the screen.