Wow. Just wow. How is it that I had never seen Bill and Ted’s Excellent Adventure before?
The California dude voices. The vocabulary. The simplified historical content involving figures who (thankfully) were not depicted as speaking English unless they were actually English speakers. Futuristic George Carlin. (George Carlin!) The time travel phone booth. (Phone booth!)
The coolest part was probably how the characters solved problems in the present by planning to return to the present later to do something that would benefit them right then.