A very solid demo, if a little short. Traditional point-and-click adventure game play and mechanics that are easily picked up and used. The writing is very good, the voice acting excellent, and the cat puns and wordplay comes at you from all angles.
A lot of really clever little details to discover - the scratch posts outside the Knitty Kitty Club for one, the titles of the books in the bookcase for another. It took me way longer than I’d care to admit to find my detective’s badge, and I ultimately did use the help tool to identify all the clickable spots in the scene.
The dev livestream that @Shrike mentions happening on Sunday will be here:
Cannot answer for all the demos but the NNL demo will not be staying around after the event. The reason in this case being that they want to add more and streamline the demo more.