Blue 2019

My Save State is where you keep a history of the games you play.

Blue is a bontegames puzzle game and the sequel to the 'yellow', 'red' and 'black' games. Can you make the screen blue in 50 levels? Each level has its own logic.
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.