Early design concept. You are shown a sequence of colours and then asked to repeat them in increasingly difficult ways. You start off with fewer colours and sequences, as the game gets harder you are shown more and more colours.
I have opted for a 'no interface' interface, swiping left and right will change the way the colours are viewed, in stripes, in blocks etc. You would also pinch out to go to the menu.
When you make an error the blocks shudder. Early days.