Killer Instinct/YMMV

"Feel the power baby!!!"
 * Awesome Ego: While he was already pretty cocky to begin with, Cinder's ego came to a head in 2013, where he's pretty much acting like he's the hottest thing since sliced bread, and most people seem to love it.
 * Awesome Music:
 * The opening theme of the game.
 * Riptor's theme.
 * Tusk's Conan like theme song.
 * Orchid's theme in the second game, "Play Hard," complete with vocals.
 * Also Cinder's theme, "Trailblazer," which could double as the boss music for Eyedol depending on what stage he was fought on.
 * Fulgore's Killer Instinct 2 Theme.
 * His KI1 theme, too.
 * Base-Breaking Character: Omen, the January 2015 character, has caused a lot of controversy among the fans. Some consider him to be a cheap, unoriginal clone fighter who uses other characters' moves and looks very bland, created by Iron Galaxy as a filler, while the others think that he is a very interesting character with an cool design and interesting backstory.
 * Broken Base:
 * Guest characters tend to be controversial with different opinions on them. With Rash, there's just as many people who are excited as there are people who think he doesn't fit the tone of KI at all, as well as claiming his inclusion will lead to KI getting flooded with guests and turn it into Microsoft's equivalent of Super Smash Bros.. Later, Arbiter caused more controversy regard. Some think it's awesome he's a character and are hopeful that having a character from a massively popular franchise will bring more attention to the game, while others think he fits even less than Rash, who is at least a character from another Rare franchise.
 * Eyedol's updated design. Some people love it, saying that it fixed many of his original design quirks, while also saying that the split-head is genius, while others think that the new design doesn't fit at all, and that they preferred the old 2-headed demon over the new ogre-like design.
 * Complacent Gaming Syndrome: You will see Jago often in ranked matches. Very often. Ditto with Orchid and, to a lesser extent, Hisako.
 * Demonic Spiders: Enemies with the Armoured Trait in Shadow Lords, which gives them the ability to become Immune to Flinching. The cooldown feels very short, especially on higher difficulties, and often turns would-be punishes into VERY painful opportunities for the enemy to tear into you.
 * Ear Worm: T.J.Combo's theme song:


 * The Humiliation theme. A short, looping disco-esque theme that WILL get trapped in your skull.
 * Ensemble Darkhorse: Fulgure.
 * Evil Is Sexy: Shadow Jago somehow manages to appear even more ripped than regular Jago.
 * On the same note, Sadira has quite her share of fans.
 * Cinder's voice does this for some fans, but the rest of him... not so much.
 * After her reveal, Mira has gained quite a following. Vampires Are Sex Gods, indeed.
 * Game Breaker:
 * Cinder could do an infinite hit combo, and it was easier for some.
 * Eyedol's infinite hit combo.
 * Good Bad Bugs:
 * Killer Instinct 2013 has a rare and amusing bug, where when a character is knocked out of their first lifebar, they will stay down and never get up. Since the timer doesn't run, there's no way to continue the fight, forcing either player to quit in an online battle, or to exit to the main menu in an offline versus battle.
 * Many of the exploits in the original Killer Instinct are so instilled in gamers' memories, such as Cinder's infinite combo, that the digital re-release actually allows players to choose between playing the revised arcade build that fixed them or the original build with all the glitches intact.
 * A bug early on with the PC version for Season 3 caused the game to run extremely fast if your monitor wasn't locked to 60hz, since it's designed to run at a consistent 60 FPS and no more. Distressing if you wanted to actually play the game, since performing combos and breakers became all but impossible, but watching the characters scramble around at hyperspeed was admittedly hilarious.
 * Kilgore originally had a bug with his Ultra Combo that caused the combo to "blow out" at various points, sending his opponent flying away early if the Knockdown Meter was filled too high before the Ultra was triggered. The Ultra Combo would, however, continue as though the opponent was still there, which lead to hilarious sights such as Kilgore unleashing a Macross Missile Massacre and uppercutting thin air. Sadly, this was patched out a few weeks later.
 * Shadow Lords allows players to attack for a short period after the fight is over to let players open the mode's treasure chests. This, however, comes to an abrupt end and plays the character's victory animation as soon as all of the loot is collected, allowing certain attacks to remain on screen for a few seconds, allowing for moments that weren't originally intended, especially if the victory pose requires the character model to be moved to a different part of the map. For instance, Cinder's Pyrobombs can cause a screen-filling explosion, Kilgore can be caught in a salvo of his own missiles, and Omen's Shadow Rashakuken can cause his various fireballs to fly past him as he poses.
 * Just Here for Godzilla: Admit it, finally getting a Halo vs. Gears of War fight with Arbiter and General RAAM is amazing.
 * Memetic Mutation:
 * C-C-C-Combo Breaker!!
 * Also, "ULTRAAAAAAAAA COMBOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!"
 * Mexicans Love Speedy Gonzales: Thunder is fairly popular among Native Americans in spite of his stereotypical nature and is more fondly regarded than T. Hawk or Nightwolf, who tend to get Ethnic Scrappy reactions.
 * Thankfully, his rebooted appearance is much more politically correct, rather than the "red-skinned Indian" stereotype from before. Apparently, some of the Double Helix devs even approached some of the people of the Nez Perce tribe to help them make it as accurate as possible, so it has the approval of at least one actual Native tribe.
 * Additionally, the Double Helix devs refused to make Thunder's retro outfit fully resemble his original appearance. They gave him a jacket and got rid of his war paint and mohawk headdress, so he looks more like a regular tough Native dude than just a walking stereotype.
 * Narm Charm: Riptor's Ultimate has fans for being somewhat cute or even enjoyable because of the silliness.
 * Nightmare Retardant:
 * Fulgore's elephant-like hit noises in the first two games, which are a rather jarring contrast to the image of a killer robot he presents.
 * Some find Eyedol's name too silly to take him seriously.
 * On the flipside, most players who found Eyedol intimidating weren't impressed with Gargos, whose design is much simpler in comparison.
 * Polished Port: Thanks to Nintendo having the programming team for the arcade version handle the Super Nintendo and Game Boy ports, instead of outsourcing it to a third-party developer. The result is that the SNES version was well-received and the GB version was surprisingly faithful, and more importantly, playable.
 * Rated "M" for Money - Fairly blatant at that. It was actually rated T, but the intent was still there.
 * They Copied It, So It Sucks: One of the criticisms towards the game was that it was a Mortal Kombat clone.