In a post-credits scene, Stan rejects a legitimate $10 million sweepstakes check, thinking it's a scam, and it is ultimately eaten by Old Man McGucket. Viewership Facts
The story kicks off when Dipper realizes he is exactly than Mabel. Insecure about being the "alpha twin," he consults Journal 3 and finds height-altering crystals in the forest.
After a scuffle between the twins, the flashlight falls into the hands of their rival, Lil' Gideon , who shrinks them both and traps them in a jar.
Gideon uses the flashlight to shrink Soos (mistaking him for Stan) and attempts to take over the Mystery Shack to uncover its "powerful secret". Character Revelations & Continuity
Dipper attaches a crystal to a flashlight: pink light shrinks, while blue light grows.
