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The menu of Challenge Mode
Challenge Mode in Pikmin 1 is a challenge to grow as many Pikmin as you can in a single day. 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. 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.