Shape Shifter is a fast-paced reaction memory game. Can you sort the coloured shapes correctly? Can you remember the shape and colour combinations? And can you do it against the clock?

Score as highly as possible by sorting the different coloured shapes you are instructed to 'keep' or 'discard'.

Memorise the shape and colour combinations - red circles, blue squares, or maybe, any coloured crescent or any green shape - and whether you must 'keep' or 'discard' them. But be quick - you only have five seconds to commit them to memory!

Swipe the shapes left, right or down with your finger - doing so correctly scores you points.

Do it right inside the target area to score more and increase the target area's size. This allows you to score more points more easily.

Mistakes are punished by reducing the target area - if it disappears the game is over.

Grow the target area to fill the screen to beat the level and get bonuses or survive until the time runs out and progress by the skin of your teeth!

Check your progress against others on the leader boards.