Exploring the Desolate Oak!

Pikmin 3
Using an out of bounds clip, we spawn inside the Oak.
Using the 'go here' function, we can activate inactive warps, and explore all five sections of the Formidable Oak! [Oak #1: Bottom, Oak #2: Top, Dark Area, Maze Area, and Long Hallway!]
Fun fact: There are actually two different oaks used in the game! One is for just the top by the geyser, and the other oak is for just the bottom by the landing site. The game warps between these two oaks as needed.

[@m0istl0la97]

I tried really hard doing this in Deluxe. Its impossible by wall clipping but in rare cases when the wraith absorbs his goo, the goo can clip you out of bounds

[@LB_]

Hah, neat.