I used to be able to 1cc Sega's Star Wars Trilogy Arcade. Most of the game is an on-rail shooter, so a lot more memorization than skill, but I got pretty good at it. You rack up extra points for consecutive hits (no misses at all) so I'd practice to keep beating my high score.
One weekend night, I climbed out of the cockpit to see a crowd had been watching me play. One guy patted me on the shoulder and said 'You're a f*ing jedi, man'.
The machine is still active at a beachfront arcade here and I still own high scores #1-5 and most of the high score table from back when the machine was 'new'.