Tumbleweed Terror

Tumbleweed Terror is a game that Soos, Dipper, and Mabel played in "Bottomless Pit!".

History
After Soos beats the high score (by cheating with Dipper and Mabel), the skeleton head in the game realizes it and sucks them into the machine. The trio plan to escape by pressing the off button, but Soos states that if it turns off, all data is removed, including his high score. After thinking, Soos decides to press it off and they return back to normal.

Trivia

 * Near the skeleton head, you can see 618, a common number found in Gravity Falls (it's Alex Hirsch's birthday).