The instructions are in the game.
The credit goes to @Liamadams for the levels I just changed the rest and the flashlight wares out List of worlds: Cubes Quest #1 The fire world Cubes Quest #2 The darkened world part 1 Cubes Quest #3 The darkened world part 2 Cubes Quest #4 The double fire world Cubes Quest #5 The dangerous world Cubes Quest #6 The destroyed world Cubes Quest #7 The End