History YMMV / KerbalSpaceProgram

* TierInducedScrappy: Despite being the very first probe core you unlock in the game, very few people use the Stayputnik. There are several reasons to that: first, it doesn't give any SAS, not even the stability assistance that literally any other command pods/probe cores have, making any ascent with it a constant struggle to avoid being thrown into the ground. Second, it doesn't have any way to control the craft beyond gimbal, and chances are you haven't unlocked any of them either, so its capabilities beyond entering orbit are limited. Third, while it is the lightest command pod in the game, it is huge, poorly aerodynamic and [[ArsonMurderAndJaywalking quite ugly]]. As a result most players wait for the much better OKTO which has reaction wheels and SAS before launching probes.

*** [=RemoteTech=] follows the same pattern. It makes controlling robotic ships [[MohsScaleOfScienceFictionHardness obsessively realistic]], forcing speed-of-light delay on transmissions and requiring a whole network of satellites to maintain connectivity at all. Some people like the realism and think probes are overpowered without it, while others think it's too convoluted and annoying to bother with. 1.2 added a simpler version of this to the base game, reawakening the arguments.

* TheScrappy: Dres. The dwarf planet's tiny mass, inclined orbit, and remote location make intercepts difficult, and its Mun-like coloration and surface features are widely regarded as generic. Consequently, most players don't bother visiting Dres at all, which is {{lampshade|Hanging}}d in one of the loading messages.

* MemeticBadass: ''Nothing'' scares Jebediah Kerman, aka "the Thrillmaster!"

** Eve is probably the most infamous. It's deceptively easy to reach the planet, and its thick atmosphere allows you to land anything on it with parachutes using minimal effort. Returning from the surface, however, is a completely different story. High gravity and the same incredibly thick atmosphere which slowed your descent will also fight against your climbing rocket every step of the way for almost 100 kilometers, creating incredible amounts of drag and killing your engine's efficiency ratings. You can mitigate this a little by launching from a higher elevation, but designing a rocket capable of landing on and returning from Eve is still an incredible test of your engineering skills.

* TheyChangedItNowItSucks: With the release of 1.0, a lot of changes were made to the previously-unrealistic souposphere of 0.90 and earlier, making it simulate real world atmospheres better and thus requiring players to change their strategies[[note]]Before, the most efficient method was to launch straight up until about 10km or so, then pitch over fairly quickly; now it's better to pitch 5-10° just a couple of seconds after launch, then gradually start pitching down once you're out of the thickest part of the atmosphere.[[/note]]. Naturally, [[WhyFandomCantHaveNiceThings some players]] refused to change their strategies, and when they naturally got their ass handed to them in the new atmosphere, [[{{Scrub}} called the game out as broken]], considered 1.0 the worst update ever, and mostly lurk by the forums not missing an opportunity to insult the playtesters or the developers. [[FanMyopia Even when seeing players sucessfully getting into orbit and exploring other planets with the new atmosphere]].

*** Life support. The unmodded game still doesn't have it, so most of the arguments revolve around whether it ought to, and if so, what it should be like. The popular mods range from having "snacks" and losing reputation when your kerbals go hungry, to killing them when they are deprived of food, water, oxygen, or electricity for too long. So, if the game ever does include life support, expect immediate backlash over it being too complex and/or too simple.

* BestLevelEver: Laythe, Jool's innermost moon, is a popular destination for several reasons. It's an ocean world almost the same size as Kerbin, with lots of biomes that make it a gold mine for scientific research. It's far away from Kerbin, but its proximity to Jool means you'll never have trouble getting an intercept as long as you bring enough fuel. And best of all, it has [[spoiler:oxygen in the atmosphere, meaning air-breathing {{Space Plane}}s are a completely viable means of exploring it]].

* TheyChangedItNowItSucks: With the release of 1.0, a lot of changes were made to the previously-unrealistic souposphere of 0.90 and earlier, making it simulate real world atmospheres better and thus requiring players to change their strategies[[note]]Before, the most efficient method was to launch straight up until about 10km or so, then pitch over fairly quickly; now it's better to pitch 5-10° just a couple of seconds after launch, then gradually start pitching down once you're out of the thickest part of the atmosphere.[[/note]]. Naturally, [[WhyFandomCantHaveNiceThings some players]] refused to change their strategies, and when they naturally got their ass handed to them in the new atmosphere, [[{{Scrub}} called the game out as broken]], considered 1.0 the worst update ever, and mostly lurk by the forums not missing an opportunity to insult the playtesters or the developers. [[FanMyopia Even when seeing players sucessfully getting into orbit and exploring other planets with the new atmosphere]].

* AmericansHateTingle: The game is popular everywhere in the world: except in Mexico, i.e. the '''native''' country of the developers. In fact, Mexican videogame press barely, if ever, talked about the game and the few Mexican players who played the game thought it was another American or European game, since the front page is in English and the game avoids including any kind of stuff linking the game with Mexico (except perhaps for the Dia de los Muertos trailer), due possibly to complicated [[CulturalCringe cultural reasons]]. Heck, the game didn't even offer a Spanish language option until 2017.[[note]]There's also the topic Mexico has ''no space program to speak about'' (other than building homemade satellites) and the avoidance of showing any element from the Mexican culture is mostly to avoid backdraft from both players from countries with advanced space programs and the ''own'' Mexican ones.[[/note]]

* GermansLoveDavidHasselhoff: The game is popular everywhere in the world: except in Mexico, i.e. the '''native''' country of the developers. In fact, Mexican videogame press barely, if ever, talked about the game and the few Mexican players who played the game thought it was another American or European game, since the front page is in English and the game avoids including any kind of stuff linking the game with Mexico (except perhaps for the Dia de los Muertos trailer), due possibly to complicated [[CulturalCringe cultural reasons]]. Heck, the game didn't even offer a Spanish language option until 2017.[[note]]There's also the topic Mexico has ''no space program to speak about'' (other than building homemade satellites) and the avoidance of showing any element from the Mexican culture is mostly to avoid backdraft from both players from countries with advanced space programs and the ''own'' Mexican ones.[[/note]]

** Whenever the physics engine bugs out due to unforeseen circumstances. Kerbals on [=EVA=] can suffer from [[https://i.imgur.com/Ay9GDDz.png very disturbing]] BodyHorror when subjected to extreme forces, and messing with certain combinations of parts can confuse the game to the point where a disturbing MinusWorld is created. Fans have attributed these glitches to a "[[TheMissingno deep space kraken]]" [[spoiler:which became an AscendedMeme when the developers placed a dead squid-like corpse on Bop]]. For examples, watch ''any'' video by LetsPlay/Danny2462 on Website/YouTube.

* GoodBadBugs: You could destroy planets with [[https://youtu.be/NLscXyIP4c8?list=UU8DIKwGU8wFZfk3Xi3-zcrQ&t=109 struts!]] Though the glitch is long fixed, you can achieve the same effect by [[https://youtu.be/kTg3vB8x3TY?t=291 playing with claws]] [[MacGyvering meant to grab asteroids]].

* MemeticMutation: [[TimTaylorTechnology MOAR BOOSTERS!]] has become famous in the geek community, referring to a common "solution" suggested by members of the KSP community when trying to increase the power of a rocket.

** Eve is probably the most infamous. It's deceptively easy to reach the planet, and its thick atmosphere allows you to land anything on it with parachutes using minimal effort. Returning from the surface, however, is a completely different story. High gravity and the same incredibly thick atmosphere which slowed your descent will also fight against your climbing rocket every step of the way for almost 100 kilometers, creating incredible amounts of drag and killing your engine's efficiency ratings. You can mitigate this a little by launching from a higher elevation, but designing a rocket capable of landing on and returning from Eve is still an incredible test of your engineering skills. Spaceplanes apparently have a slightly easier time of it, but those are a pretty good candidate for this trope all by themselves.

** The tune played when you break out of atmosphere is haunting and 2001-esque.

* ShockingMoments:
** The fact that Heure uses the [[Series/KamenRiderGhost Captain Ghost]] in episode 4, complete with a strange robot mode to stop Sougo’s Time Mazine and it escalates further with Ora using the [[Series/KamenRiderKiva Castle Doran]] in episode 10 as well.
** [[spoiler: Woz becoming a Rider]] was already something [[IKnewIt many people saw coming]]. But [[spoiler: Woz using the powers of '''''[[UnexpectedCharacter future]]''''' ''[[UnexpectedCharacter Kamen Riders]]'']]? ''That'' threw everybody for a loop. The reveal about [[spoiler:Kamen Rider Woz]] is another shocker—[[spoiler:in that he’s a [[TitleDrop new Woz]], appearing simultaneously with the original Woz. Who also looks appropriately shocked]].
** Episode 9 has [[spoiler: Past Riders having the potential in becoming Another Riders]] and [[spoiler: Zi-O’s rise to Demon King seems closer than ever.]]
** The ''Heisei Generations FOREVER'' trailer has [[spoiler: the Rider world slowly becoming dissolved into the real world, with an evil Time Jacker intending on erasing all of the Heisei Riders]].
** [[spoiler: [[Series/KamenRiderDecade Tsukasa Kadoya]] returns, and he uses a [[InsistentTerminology mag]][[RunningGag enta]] colored version of the Decadriver that lets him use the powers of ALL the Heisei era riders.]] Additionally, his subsequent transformation into his successors’ forms also draws comparisons to the [[Series/KaizokuSentaiGokaiger Gokaigers]] being able to use the Ranger Keys from [[Series/TokumeiSentaiGoBusters Go-Busters]] to [[Series/ShurikenSentaiNinninger Ninningers]] during their guest appearance in ''Series/DoubutsuSentaiZyuohger''.
** The long awaited return of [[Series/KamenRiderDenO Ryotaro Nogami]].
** The Day of Oma arc, where not only have Riders from the future made an appearance, but also the fact that they also come with their own Another Rider counterparts.
** The [[spoiler:Another Zi-O]] arc, in which '''all hell has broken loose'''. [[spoiler: The powers of Kamen Rider Woz have swapped, the Another Riders have crowned their King, and he can birth more himself, and Geiz and Sougo are fighting for the future, with the former gaining his upgrade and finding out its too much for his body to handle. It is also revealed that ''Swartz was behind both the bus accident, and Sougo becoming Zi-O in the first place.'']]
** The reveal that [[SuperMode Grand Zi-O's]] main ability isn't just [[SummonMagic summoning other Riders]] - but summoning ''any'' version of the 20 main Heisei Kamen Riders and ''any'' weapon they have wielded in the past 20 years of the Heisei era directly from '''[[TimeMaster any point in time]]'''. Then the episode after that reveals he can ''[[UpToEleven rewind and pause]]'' [[UpToEleven said summoned Riders]].
** Due to not having the actual Drive Ridewatch, [[spoiler:Sougo's fight with Oma Zi-O causes [[TheBusCameBack Hiryu]] of the ''Another Zi-O'' arc to return and become ''[[TookALevelInBadass Another Zi-O II]]'' as well as the new Oma Zi-O.]]
** Episode 43 ends with [[spoiler: Another Zi-O II defeated, but Swartz gets what he wants, not only stealing Tsukuyomi's time powers and taking back the powers he gave to Ora, but also his main objective: '''Decade's powers'''. And the preview for the next episode seemingly shows him becoming Another Decade.]]
** In the movie, ''Over Quartzer'': [[spoiler:Zi-O Ohma Form summoning every Heisei Rider in their Final Forms for a spectacular All Rider Finish.]]
** The penultimate episode gives us a big one. [[spoiler:Tsukuyomi, at long last, becoming a Kamen Rider!]]
** The finale [[spoiler: has Sougo willingly become Oma Zi-O and reveal Oma Zi-O’s power isn’t just the combination of the twenty main Heisei Riders, it’s the combined power of EVERY Heisei Rider, good and bad.]]
** The Next Time Kamen Rider Movies: starts with a big reveal. [[spoiler:Geiz gets his own [[AllYourPowersCombined Grand Ridewatch]] in the form of Geiz Majesty, which takes from every ''Secondary Rider'' instead.]]

* SelfImposedChallenge: Since it was originally a WideOpenSandbox with no set goals, these are common. Making ridiculous rockets, making manned ballistic missiles, making space shuttle equivalents, spacecraft that look like specific patterns, achieving orbit, achieving orbit (or a whole mission) with a single-stage spaceplane, reaching relativistic speeds, getting a huge and completely pointless concrete cube into orbit, landing on the moons of Kerbin, landing on other planets, landing on ''the sun''[[note]]generally impossible without serious glitches, though that certainly doesn't stop people from trying; "landing" on Jool, a gas giant, is possible in some versions[[/note]], flying to the North Pole, flying to the other Space Center, doing any of the above using only first-person cockpit view, etc.

** HolyShitQuotient: ...so when he ''does'' start getting scared, it means something has gone '''catastrophically''' wrong.

* GermansLoveDavidHasselhoff: The game is popular everywhere in the world: except in Mexico, i.e. the '''native''' country of the developers. In fact, Mexican videogame press barely, if ever, talked about the game and the few Mexican players who played the game thought it was another [[BlatantLies American or European game]]. It doesn't help the homepage is in English, without ''any'' Spanish-language version of the page and the game itself is in English. In fact, the game avoids including any kind of stuff linking the game with Mexico (except perhaps for the Dia de los Muertos trailer), due possibly to complicated [[CulturalCringe cultural reasons]].[[note]]There's also the topic Mexico has ''no space program to speak about'' (other than building homemade satellites) and the avoidance of showing any element from the Mexican culture is mostly to avoid backdraft from both players from countries with advanced space programs and the ''own'' Mexican ones.[[/note]] Subverted at 2017, when they finally included Spanish language on the game, along others.

* GermansLoveDavidHasselhoff: The game is popular everywhere in the world: except in Mexico, i.e. the '''native''' country of the developers. In fact, Mexican videogame press barely, if ever, talked about the game and the few Mexican players who played the game thought it was another [[BlatantLies American or European game]]. It doesn't help the homepage is in English, without ''any'' Spanish-language version of the page and the game itself is in English. In fact, the game avoids including any kind of stuff linking the game with Mexico (except perhaps for the Dia de los Muertos trailer), due possibly to complicated [[CulturalCringe cultural reasons]].[[note]]There's also the topic Mexico has ''no space program to speak about'' (other than building homemade satellites) and the avoidance of showing any element from the Mexican culture is mostly to avoid InternetBackdraft from both players from countries with advanced space programs and the ''own'' Mexican ones.[[/note]] Subverted at 2017, when they finally included Spanish language on the game, along others.

* InternetBackdraft: The community is generally a pretty laid-back bunch, but there are two particular topics that tend to be the subject of intense debate whenever they're brought up: Autopilot add-ons such as Mech Jeb (specifically whether they're helpful learning tools for new players, crutches that take away the fun of learning to pilot manually, a cheating device for players too lazy to learn how to fly on their own, or something that takes away the tedium of flying manually when you've done it so many times already; note that pointing out that it's closer to how real rockets are guided does ''not'' help), and Lagrange Points, along with proposals on how to implement them that's already been discussed and dismissed a hundred times.