The Streetfighter / YMMV

General (main trilogy)

Awesome Music: The funky theme song by Toshiaki Tsushima is pure seventies awesome. You'll be humming it for the rest of the day.
Crosses the Line Twice: The immense levels of gorn take on an almost Pythonesque quality after a while.
Designated Hero: Terry. More often than not, he's a dick to everyone he meets, even to his own partners, and even got a girl raped and sold as a sex slave all because she couldn't afford his services.
Narm: Terry is a total Bruce Lee Clone and Sonny Chiba tries his best to channel Bruce Lee himself whenever he fights, but he makes stupid faces instead of Funny Bruce Lee Noises.
Hilarious in Hindsight: Terry Tsurugi has been offing stereotypes long before M*** Mouse started doing the same thing! Of course, the stereotypes Terry encountered on a semi-regular basis were Yakuza Mooks.

Fake Nationality: The Hong Kong triads are all played by Japanese actors. The (presumably) Indonesian Abdul Jadot is played by an American actor.
Fridge Brilliance: Terry wanted to make sure Junjo got the deathmatch against him that he wished for ASAP, otherwise he wouldn't have been such an asshole to his siblings. Then again, when Junjo first intercepted him later on, he was already preoccupied with something else at the moment:
Junjo: I've waited a long time to settle the score!
Terry: Don't be too impatient, I'll see you another time.
Lady Mondegreen: Even the DVD subtitles and New Line VHS closed captioning misinterpret one of Terry's lines in the English dub as "I'm nothingness for nothing." He actually says "I'm not in this for nothing."
Moral Event Horizon: The revelation that Jadot orchestrated the death of Sarai's father and misled her throughout the film.

Moral Event Horizon: Otaguro comes very close, but he doesn't get the chance to seal his crossing of it before Don Costello shoots him three times (twice in the R-rated version). Don Costello himself crosses it by ordering his men to blind Kitty, if he didn't already do so by sending them to complete the Mafia's contract on Masaoka, which results in Yamagami, Ken Mao, and Gorasing dying and Masaoka himself being tagged in the arm.
Special Effects Failure: Happens when Terry hits a mook in the back of the head, knocking his eyes out. The effect is shown using a pair of googly eyes. Horrifying the first time, hilarious every time after.

Fridge Logic: How could Aya possibly think Mr. Black's death "was too cruel" when it's quite clear from the audio that Black may have actually been killed instantly by the retort? Terry may have actually been merciful to Black by burning him at full power.
Moral Event Horizon: Frankie Black crosses it when he kills Huo Feng in cold blood during an ambush.
Narm: "I don't have to stand for any of that stuff, you pig bastard!", originally spoken by Kimiko when someone tries to make out with her over the phone while she's on the job as an operator, becomes this when she taunts a would-be rapist during the dance scene. Reused recording, much?

Moral Event Horizon: The villains of Return cross it by kidnapping Rika (Shurei's daughter) and using her as live bait with which to ensnare Tina Long. Ebikura proves himself even more sadistic when he leaves Kurozaki for dead and tries to take Tina and Rika down in the process, and the Big Bad crosses it by killing Shurei, who protected Rika from a trio of bullets he had fired at them.
Awesome Music: Much like The Street Fighter, the first Sister Street Fighter has an equally super funky theme song by Shunsuke Kikuchi. It's weapons grade ear worm to be sure.