Sounds good. There already is a category tree, though it can be improved. We definitely do need to clean up the images, and a revision to the rules and front page sounds like a good idea. It might be difficult to lengthen some of the pages, so some merging might help with that.
I also quickly did the administrators template and put it in where it needed to be.
Alright, I got a draft of what one of the amalgamated pages will be like here. I decided to combine all the human characters, since most of them have relatively very little info. This one is probably the hardest amalgamation, the others will likely be easier.
Yeah, all of those suggestions sound good, though I'd suggest combining the Kitchen Vent with the other Kitchen articles, and the Ventilation Shaft might be better combined with the Doors article, since they are different types of articles.
I'd also combine the Tubbyland Restaurant and Tubbyland Warehouse pages, since they are very similar. The two stages, dining rooms, and party room articles might also benefit from amalgamation, though I'm unsure.
Delete any still existing images that break our current rules, and categorize files into "Canon Images", "Non-Canon Images", "Fan-Made Images", "Canon Audio", "Non-Canon Audio", and "Fan-Made Audio".
Canon files would be files that are in-universe, which means all in-game images (excluding that one Mickey Rooney photo), as well as some files outside the game.
Non-canon files are files that are official, but are not in-universe (e. g. Time for Tubby Bye-Bye images, most DeviantArt images such as flying Tinky Winky and Po-ker, as well as certain voice clips).
Fan-made files are self-explanatory, stuff that is made by fans and are not official.
If there are certain files that aren't used anywhere at all, they should either be added to a page if official, or deleted, if fan-made.