The Forest (森, Forest) is the 9th stage of the Subspace Emissary.
In the beginning, Link is shown drawing the Master Sword from its pedestal, marking his first appearance in the SSE. In a preceding cutscene, Yoshi is seen sleeping on a tree stump as Link walks past him, briefly awakening Yoshi who then goes back to sleep. Suddenly the Battleship Halberd is seen flying over the Forest dropping Shadow Bugs forming into Primids. Link then prepares to fight, and is quickly joined by the wakened Yoshi and they give chase to the Halberd. From this point is when the level starts.
At the end, Link and Yoshi arrive at the Forest edge and reach a cliff and are forced to take a different direction. Link and Yoshi will be seen looking at the retreating Halberd (over the Wilds). Link and Yoshi will subsequently join the player's team.
Meanwhile, inside the Halberd, a mysterious box with the game's title and logo on it lingers about.
After clearing the Subspace Emissary, a red door can be found near the beginning of the level. It leads to the Great Sea, and Toon Link will be shown looking out from the top of the Pirate Ship, who, upon spotting the player, slides down a rope using his shield and prepares to fight. Upon defeat, Toon Link will join the party and will be unlocked if this hasn't been done already.