rolldown: a rolldown occurs when a top prize pool is not won, and that money is redistributed to be shared with those that win a smaller prize. in lucky money, when a $2 million jackpot is not won, any funds in excess of $2 million are rolled down and added to the pools for all other winners, except players who only matched the "numbers" (they still get a free ticket). in fantasy 5, whenever no player matches all five numbers, the top prize pool is added to the second prize pool (correctly matching four numbers.) on september 15, 2008, the fantasy 5 rolldown was modified; the top prize pool now is added to second prize. however, matching four numbers is capped at $555 per occurrence; in such cases, the third prize (three numbers matched) pool receives the remainder of rolldown funds.