Question difficulty is something we have trouble with. I'll admit that the Pikmin question should perhaps have been rated a 6 or 7, but in the end, for a lot of these categories, it's less about "how hard in this question" and more "have you played or seen this particular thing". Like, "What town does Parks and Recreation take place in" is a pretty easy question for anyone who's seen it, and literally impossible if you haven't. If you've played Pikmin 3, you probably knew the answer to that question, so we have to make a weird estimation of "approximately what percentage of the players on Mysterious Monsters, which include largely industry-working or industry-adjacent people, have played Pikmin 3 or at least seen major marketing for it". And that's pretty tough.
Video games in particular are something that almost all guests are likely to be at least familiar with, but the general goal is to have contestants picking categories that they feel they have a higher than average knowledge in.
I'm not sure literally anyone in Episode 4 even bought a potion; in Episode 5, they literally sold out the store. They were pulling from the same bank of questions. The upcoming Episode 6 randomly balances back toward center again, I think.
