WIP means Work In Progress. It just means is content that is still in development.
The other 2 points are still WIP
1.- Yes I can sell you a key but I need you to contact me in other places where I can send a private message.
You can check here: https://bio.link/dmquetzalli
You can send me an note over Furaffinity, inkbunny or Twitter.
2.- If you already cleared Mountain Pass then you already should be able to locate it. If you want a specific answer please ask in the Spoiler topic.
She isnt a secret boss. You need to "defeat" her to progress in the story.
All I can say without spoiling is keep an eye on your"Status icon" during battle and change the way you act accordingly. If you wish to know directly how to defeat her. Please ask in the Spoiler topic: https://dmquetzalli.itch.io/delve-into-pawssion/devlog/382260/guides-and-secrets...
If you want specifics please check on the spoiler post, I added some tips there at the bottom for now:
https://dmquetzalli.itch.io/delve-into-pawssion/devlog/382260/guides-and-secrets...
Hello. to complete those puzzles you need to add blue symbols and remove red symbols, is ideal you follow the order in the slots to get the proper final combination.
As for Vail, the mount of damage the barrels take counts, depending on how well you did you get better rewards. However, if you let the barrels get damaged too much or destroyed, the NSFW wont happen, since the quest will be considered as "failed". However, regardless of the outcome, Artwork can be recovered at later points in the game (not avaiable in the current version)
I do have a Subscribestar where people can donate: https://subscribestar.adult/dmquetzalli
Sorry for the late reply.
The shiny objects will begin having an use in the next patch.
The thorns will be posible to remove in the next patch too!
As for the holes, some are decorations but on the next patch some will have an use.
As for the bosses, not sure what you mean but you almost cleared it up. When entering the caves did you go to the right side at the very start?
If you cleared the right side at the very start you may be experiencing a bug, so let me know.
The next patch will have indicators on what parts are accesible and what arent.