Ups, my mystake
Find code in scoreboard.html.php file:
$query = "Select score,#__puarcade.userid,date,username, ".$profileimg." from #__puarcade
LEFT JOIN #__users on (#__users.id = userid)
".$avatartable."
WHERE gameid = '$score->gameid' ".$showguest." order by score ".$ordering.", date asc limit 0,1";
and change it to:
$query = "Select score,#__puarcade.userid,date,username, ".$profileimg." from #__puarcade
LEFT JOIN #__users on (#__users.id = userid)
".$avatartable."
WHERE gameid = '$score->gameid' ".$showguest." order by score ".$ordering.", date desc limit 0,1";
or You can wait for next version, but maybe will not be soon.