They sneak in a few bits of Monkey Island 2 too. They even got into Gilbert's own notebooks. I do like the vulture with the bib, even if it likely wasn't ever part of the game.
Helpfully, they show and explain a whole lot in a blog post, if you'd rather not go through two hours of video. The stream goes hard on cut content, early concepts, and a few parts they've managed to actually restore. Yes, the sound does start quiet but it picks up.
It's hosted by Video Game History Foundation founder Frank Cifaldi there, who you might know from his work on preservations/celebrations like the Mega Man Legacy Collection. If you fight like a dairy farmer, this is for you. Seeing as the Foundation are well into the development of games, not just finished products, they also delve into cut content and even give a live demonstration of SCUMM coding. That cost $10 to help support their preservation work, but after a few weeks they've made it free for everyone to watch. In celebration of The Secret Of Monkey Island's 30th birthday last month (30!), the Video Game History Foundation held a stream discussing the classic adventure game with boss man Ron Gilbert.