Two lines from 4 greens leds in that are presented successively combinations with most leds lighting. The non lighting leds in a line they create corridors. The green lines scroll down under in regular time intervals (ph, 1 sec). One from the 4 red leds in a third line is open showing the place of player. The player should be moved in place that one green led is close from the line that is above before the next scroll down. Two switches move the place of player left or right. If it is not stepped the player will remain in his place. If the player is already in the finish to a direction and is pressed the key of this direction does not change nothing. If it does not enter in the right place the player (under in one open led) the game finishes with all red led they blink until is interrupted the catering.