Save the game at any point to unlock a "Challenge Mode"
option at the main menu. Select that option to replay previously
completed sections in a time attack type scenario. The objective
is to collect as many Pikmin as possible before nightfall.
You're the master of the Pikmin, so abuse your authority!
Press down on the D-pad to round of four Pikmin to carry you
back to base camp. A brief fireworks display will be held
in your honor. Standing idle long enough will produce the
same royal treatment.