Bottomless Pit!

Gravity Falls - S1 E14

Double Dipper

Gravity Falls - S1 E7

Gideon Rises (2)

Gravity Falls - S1 E20

The Inconveniencing

Gravity Falls - S1 E5

The Legend of the Gobblewonker

Gravity Falls - S1 E2

Summerween

Gravity Falls - S1 E12