Due to long reply I will reply it here. I like the puzzle mechanics of some effects and I think that's one thing I will praise about this game's effect hunting mechanics.
EDIT: Just a follow-up of like the playthrough part 2 is out, and I kept the bugs in the video unedited, just for more clarification. Tho the other bugs, I didn't perform, since I was recording. I just hope the previous comment and that will help.