To play the jump game. Press the button that cordinates with the light, when it lights up. So if the light on the left lights up, press (A ), if the light in the middle lights up press (B ) if the light in the reight lights up press (C )
and you have to press the right button within 0.5 of a second after the light turns on.
It clearly states how to play in the intruction booklette