After mere seconds your concentration and reactions will fail you.
Match up symbols as the spheres casually drift towards each other. With nerves taught and eyes unblinking, swipe the sppropriate symbol to destroy unmatched spheres or those threatening to fall off the edge.
Which strategy will you followto top the high-score and prove to everyone you have an unbeatable attention span?
Music by Kevin MacLeod (incompetech.com)