I think what the title is supposed to mean is what you experience when watching these. Not sure what 98 means, but going off Vertigo (doesn't really make sense, who gets vertigo when watching a mindbender?) that is really the only thing that has any type of decipherable meaning.
you forgot Ken Park.
I don't understand the title... but there are some great films on this list
Useless without 4chun
good list, i've seen 80% of them, not so mind fucking as recommendable imho