Your goal is to make all the rectangles in the grid the same, either the same pattern in black and white, or the same color on color machines.  You change colors or patterns by clicking in the rectangle.
Sound easy?
Well, it's a little more challenging than that.  
First, Flipper just won't leave things alone.  At some random time  Flipper will flip the color to the next color, messing up all your planning.
Second, it gets tougher as you go.  There will be more spaces in the grid, and more colors or patterns in the sequence (up to 30).
Third, the time that Flipper waits before changing colors also gets shorter as levels increase.
And fourth, you only have 300 seconds (5 minutes) to complete each level.