First player is lucky. Only two bricks to load. ;) When you step onto a brick, other bricks will be created in the surrounding spaces. Gray bricks (if not trapped by a player) can safely be stepped on, while other bricks each have unique properties. A color (and possibly some other properties) will show what it does (open the help for more info). Bricks only last for TEN SECONDS, becoming more transparent over time. THERE ARE NO INVISIBLE BRICKS--if you cannot see a brick at all, there is no brick there, at least not for long enough to make standing on it worthwhile.