I'm not sure if all DB characters will have resistance here, since Krillin was already terrified by it, but Goku insisted it was an illusion.
Maybe you hightlighted this part?
I'll bring up Goku's previous feat of
instantly recognizing an "llusion" when Tien split his body into four in the original DB, but assuming it's a resistance to illusions seems vague. But wait a minute, in the DBS Anime, Goku can
identify that Hit is using
illusions, even by giving each illusion a Ki signature. And also, in this thread for the next episode, where Goku immediately recognizes that it's an illusion. Should this be enough to give Goku "Resistance to Illusion Creation"?
At least Goku could say, "Yeah, I've seen that trick before."
But for NPI, it does appear that the Forest of Terror creates illusions through someone's memories, and all materials from rocks, trees, and even gas are transformed into illusions of enemies Goku and Krillin have defeated.
For Longevity, that's already listed in his profile.