Spoilers ahead: for the puzzle and the movies/games
This page reveals all categories and answers for this puzzle. It also discusses plot details, story endings, and other spoilers for some of the movies/games shown.
easy
Stoner comedies
Up in Smoke · Friday · Half Baked · Smiley Face
These films sit squarely in the stoner-comedy lane: getting high is not background color but the comic engine. The jokes, pacing, and bad decisions all depend on an altered state that keeps making simple errands harder.
medium
Hangout movies
American Graffiti · Diner · Clerks · Everybody Wants Some!!
What matters in these movies is not a giant plot machine but the pleasure of staying in the room, car, diner, or parking lot with the characters. They move by drift, banter, and small changes in mood, which is exactly what makes the form so deceptively hard to pull off.
hard
Psychedelic substances reshape what you're seeing
Fear and Loathing in Las Vegas · Altered States · Climax · A Field in England
These films do not just mention drugs in passing. The altered state changes how the movie moves, cuts, hears, and panics, so the audience gets dragged into the trip too.
tricky
Dreams invade waking life
Paprika · Dreamscape · A Nightmare on Elm Street · Before I Wake
The click is how literal this category is. Dreams are not symbols sitting safely in somebody's head. They leak outward, hunt people, rewrite rooms, and make waking life unstable.