How To Fix Broken Kiosk Sequences Without ANY Retail Files
There's a file in your main root directory called OBJSEQ2C, this is also in every level folder but the game is looking for the one in the root. Normally like in the retail version, this file is identical across all folders and root. The Kiosk however has around half of the folders with a different version of this file (this explains why the latter half of the game is normally a mess)
Luckily the other version of the file is identical across the other half of folders (barring a few unused areas!) In your Kiosk, you can move this file from a "broken" area, say Dragon Rock's folder, and put into the root. This will make the remainder of the areas that didn't previously work correctly, work! Downside to this is now the first half of areas won't work properly, you could create 2 separate ISO files to combat this, though will have a look if there's a way to somehow combine the 2 OBJSEQ2C files and function properly.
Large benefit to this outside of a lot of areas functioning now, is there's cutscenes and puzzles unique to the Kiosk which will now work. Just put a few in this video to get the general idea.
Some actual broken and/or unfinished sections will still remain of course, but this fixes quite a fair bit!