First Part Found

First Part Found is the fourth day of Olimar's Comeback. It takes place in the Distant Tundra, with the objective of carrying a ship part to the SPERO.

Plot
After finding the Hocotate Ship, Olimar travels to the Distant Tundra to look for the missing ship parts. Much like the first game, the first ship part they find is the most important: the Main Engine. Although, it seems they have somehow defeated none of the enemies or destroyed any of the obstacles between the SPERO and the part's location, so the goal for the remainder of the day is to clear a path back.

At the end of the day, Olimar proposes he and Louie split up for the next region, but worries about Louie exploring on his own.

Description
The day is themed around making a path to take the Main Engine from its starting point to the SPERO by destroying gates, building bridges, and defeating enemies that are in the way. Once the Main Engine is retrieved, the day ends.

The player plays in the main segment of the Distant Tundra with the double bridges. They start in the bottom of the three high ledges below the President-like snow statue with the Main Engine, the Yellow Onion, and no Pikmin. The main exit is blocked by two Kingcaps, one containing nectar, and three Spotcaps, all containing nectar. The opposite side has a geyser that will take the player to 5 Yellow Pikmin sprouts, strangely planted in a straight line, and 16 Blue Pikmin sprouts, also in a line, leading toward the slide on the top. Right outside that section are two Wollywogs, 5 Yellow Pikmin sprouts, an electric gate leading to the bridges, a brick wall covering the Pikmin swapping point used in story mode, and Kingcaps with Spotcaps in the water blocking the entrance to the stream.

During gameplay
In some situations during gameplay, Olimar or Louie will leave a comment.

Trivia

 * Since the Yellow Onion is separated from the Master Onion, and this level is the first level of Olimar's Comeback to use Yellow Pikmin, it's likely they rediscovered Yellow Pikmin on this day (much like the Koppai team did in story mode).
 * Although, in Side Stories, it seems most Onions are separated, like in and, or outright missing. Because of the debatable canon of this mode, it's likely this separation is due to gameplay purposes rather than showing a devolution of the Onions.
 * There is a seemingly unused piece of gameplay dialog that is specified in the files for this stage but cannot be triggered. Olimar's line is and Louie's line is.