Artificial Brilliance: El Greco won't put his shield down until you stop firing. His reflexes with his whip are also really fast.
Richard Rose's fight starts out looking like he's content to stay on the balcony like the first boss... that is until his barrier is destroyed, at which point he immediately jumps down, moves all over the upper and lower height levels like a player character on crack and starts utterly destroying you.
A Winner Is You: Completing the SNES version of the game on anything besides Hard Mode nets you a hearty "Good job, podner!".
Book Ends: The first boss, Simon Greedwell, is fought in front of a building's facade. He shoots the players from behind a barrier with mooks appearing from all directions to support him. The final boss, Sir Richard Rose, is fought under very similar circumstances, that is until you destroy his barrier.
At that point his fighting style becomes similar to the second boss, Hawkeye Hank Hatfield. Only cranked Up to Eleven. And at one point he sort of borrows a trick from the third boss, Dark Horse. A hidden plate of metal under his shirt. This all still counts for trope purposes.
Bowdlerise: The SNES version faced some censorship, including removing all references to alcohol, adding some modesty to the female NPCs, changing a boss' name from Chief Scalpem to Chief Wigwam, cutting his lines from "Me ready for pow wow!" and "Me pow-wowed out!" to "Ready for pow wow!" and "Pow-wowed out!" (though the subtitles say "Get ready for a pow-wow!" and "I'm pow-wowed out!") and replacing all the Native American enemies in one stage with white outlaws. Additionally, El Greco no longer says "Die, gringo!" before battle.
In both console ports, the female dynamite throwers are replaced with dynamite-wielding variants of the male bomb throwers.
In the Genesis version the player has to rescue a brown-haired girl in a yellow dress at the end of every odd-numbered stage. In a 2-Player game the player who gets to the girl first will receive the stage clear bonus.
Flash of Pain: The bosses flash white upon hit, and red when in critical health.note Very few destructible objects in the game like the barrels at the end of stage 1 as well as the wooden gates in the final stage have the same seizure-time concept bosses had.
Mad Bomber: The Smith Brothers. One of them has enough sense to talk, but the other is completely Axe Crazy. Their boss fight (the only one without a preceding stage) could be dangerous to play if you're epileptic.
Mirror Boss: Sir Richard Rose. After you destroy the barrier protecting him on his balcony, he'll to begin dash, jump and slide around the stage with agility that rivals that of the players. One difference is that his slide can do Collision Damage to the players.
Reformulated Game: The Genesis version is missing Steve and Bob, and only four of the arcade version's bosses are included. However, the stages are completely redesigned and are now divided into two segments, while the bonus rounds are different as well, so it's not a complete loss.
Sweet Tooth: Paco Loco if the Genesis port is to be believed, as all money on his stage is replaced with candy, including the large amount he drops upon defeat.
Token Minority: Cormano is the only Hispanic in a team of blond-haired white cowboys.
Traintop Battle: The boss fight against El Greco. But that's not the only stage where you have to walk through a moving train.
In the Genesis port, Paco Loco is the one fought atop a moving train.
Vocal Dissonance: Cormano, the Mexican gunslinger, has the exact same twangy Western accent as the other three heroes.
Warm Up Boss: Simon Greedwell doesn't nothing but fire at you from the balcony with his rifle, even after you've removed his improvised barrier. He's more like a regular Mook with a massive HP boost.
Wake Up Call Boss: El Greco. He actively blocks your shots, only whipping you when he's not hiding behind his shield, and said whip has a lot of range. Players who thought they could get by just filling the screen with bullets usually end up losing a fair few quarters to this guy.
You No Take Candle: Dark Horse says, "You in big heap trouble!" when you fight him, and "Me in big heap trouble!" when you defeat him. Chief Scalpem also introduces himself with, "Me ready for pow wow!" and croaks, "Me pow-wowed out!" when defeated.