- It is revealed in this episode that Dipper and Mabel's birthdays are on August 31.
- At the end of this episode, Bill, possessing the body of Blendin Blandin, shatters the rift, beginning Weirdmageddon.
- Doge appears on the calendar when Mabel is talking about Soos, Grunkle Stan, her, and Dipper's big day.
- Right before Bill reveals himself and comes out of Blendin's body, he falls on the rift, but later, it is bare. Also, Bill took off his glasses, but when he is rising to the sky, Blendin is wearing his glasses again.
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