Grizz is still working on 'The Cat's Meow' I think. Password 2 will be called 'Syndicate' and isn't planned to have Dave in it. To get passwords true ending you need to find every zodiac medal wich requires you to go through every ending.
Password is still in BETA and will eventually get redone with a sprite rework thats been in the works forever along with the CGs being completed and the story streamlined with password removal.
If you want a glimps at the sprites, this is still more outdated i think but:
https://www.patreon.com/posts/password-beta-b0-90968451
If you want the Dave X Tyson nsfw event script it's in the attachment of this post by Grizz since the VN isn't going to include it: