English Mother 3, Chapter 8, Empire Pork Building
As Lucas, Boney, Kumatora, Duster, Flint, the DCMC, Wess, Alec, Dr Andonuts, Bronson, Lighter, and Fuel all gather in order to end this madness, the Pig King Porky Minch reveals himself for the first time in the game. After some talking he drops the first five down an elevator to some underground caverns where Flint goes on ahead, and the four going after.
This part was really just a cutscene aside from the playable section where I save at the end. This ends with me playing because I stopped there and continued the next day.