After 'yellow', 'red', 'black, 'blue' and 'green' it's time to solve 50 new conundrums! Do you need help? Use the light bulb button that will appear after a while in the top right of each level to get a hint. There are multiple hints for each level. With the in-app purchase you will not get ads before the hints. A Bart Bonte / bontegames puzzle game. Enjoy! @BartBonte