Challenge Mode in Pikmin is a challenge to grow as many Pikmin as you can in a single day. At the end of the day the number of Pikmin is tallied up on a scoreboard, ranking the top five scores. It can be unlocked when you discover all three types of Pikmin in Story Mode. Levels are unlocked as you encounter them in the main game. The areas are slightly different from the ones in Story Mode, having different enemies and obstacles in different places, and lacking in ship parts. In addition, the S.S. Dolphin is not present during play, meaning Olimar cannot repair his spacesuit, so the player must take great care as to not let Olimar fall. In Challenge Mode, the areas are slightly darker than their in-game counterparts, and the speed of each area's music is increased slightly. Bomb Rocks are found in greater numbers, too.