- Awesome Music: See Awesome Music: Film.
- Fair for Its Day: Casual homophobia aside (see Values Dissonance), the films had a subtle point about women's right to consent. The Princesses choose Bill and Ted over their arranged marriages and their "happy ending" is being able to marry for love. In the sequel, the Evil Robot Bill and Ted are shown not respecting the Princesses and demanding they put out, and Bill and Ted are shown to be disgusted by this behaviour.
- Genius Bonus:
- Sigmund Freud's corndog-on-a-stick gag.
- When Freud is coming on to some girls, he tells them that they "seem to be suffering from a mild form of hysteria."
- The references to The Seventh Seal.
- The guys spotting some weakness in Napoleon's plan for the Battle of Waterloo. Made funnier because their tone implies they're not using historical knowledge; two idiots just noticed a flaw that the emperor didn't.
- When they pick up Joan of Arc, Ted briefly mimics the well-known picture of God and Adam from the Sistine Chapel's ceiling fresco.
- Genghis Khan is shown forcefully making out with a servant girl - why do you think he supposedly has descendants across half of Asia?
- That scene where Napoleon's thrown out of the bowling alley? Instantly familiar to anyone who's seen the 1927 film Napoléon.
- Memetic Loser: Poor Alex Winter is often mocked as "the guy from Bill and Ted who's not Keanu Reeves" due to how much bigger Reeves' career got afterwards.
- Memetic Mutation
- "Be excellent to each other... and party on, dudes!"
- "Strange things are afoot at the Circle K."
- The Wyld Stallyns guitar riff and accompanying hand motions.
- The picture for Conspiracy Keanu comes from Excellent Adventure.
- "San Dimas High School football rules!"
- "Sixty-nine, dudes!"
- Narm Charm: Acted by anybody else, Bill and Ted's style of speaking would probably get annoying incredibly quickly. However, the sheer earnestness of the characters and their actors' performances makes it an endearing character trait that is now impossible to imagine them without. It helps that it's portrayed completely tongue-in-cheek and not like a legitimate attempt to be "hip".
- Poor Man's Substitute: Had David Newman not scored the first two films, David's predecessor Henry Mancini would have scored those installments' music.
- Values Dissonance: When Bill and Ted hug, they always push each other away and humorously shout "Fag". This was okay for an 80's movie that was rated PG. That term is less acceptable now. The same goes for the sequel, where the guys attempt to talk the Evil Robot Usses out of killing them by saying "We love you!", prompting the ERUs to say "Fags!" and then kill them anyway. Acknowledged by one of the writers, Ed Solomon, who confirmed on his Twitter that the third movie won't continue the gag.
- In the first movie, Genghis Khan - national hero of Mongolia - is portrayed in a very animalistic manner, as if he were a stereotypical caveman.
YMMV / Bill & Ted