History YMMV / ResidentEvil0

* ThatOneBoss: The Giant Bat is one of the most widely hated bosses in ''Franchise/ResidentEvil'' history, for starters before you even ''see'' the boss, you are locked om it's area as you enter a dead-end save room (and presumably save) then leave and get ambushed to start the fight so if you've saved here then there is no way to return to grab ammo/health/weapons as you are simply stuck with what you brought with you. With an extremely quick and erratic flight pattern, and its spawning a steady stream of smaller bats to run interference, it seems tailor-made to exploit every weakness of the game's aiming system. Worse, the bats it spawns not only make it harder to target the Giant Bat, but they will steadily whittle away at your health. Even exploiting its stun-lock vulnerability to flame grenades isn't a sure thing, because when it's hit, the "stunned" bat will jerk in mid-air, throwing off the auto-aim and making it hard to continue pounding it with grenades.

* ThatOneBoss: The Giant Bat is one of the most widely hated bosses in ''Franchise/ResidentEvil'' history. With an extremely quick and erratic flight pattern, and its spawning a steady stream of smaller bats to run interference, it seems tailor-made to exploit every weakness of the game's aiming system. Worse, the bats it spawns not only make it harder to target the Giant Bat, but they will steadily whittle away at your health. Even exploiting its stun-lock vulnerability to flame grenades isn't a sure thing, because when it's hit, the "stunned" bat will jerk in mid-air, throwing off the auto-aim and making it hard to continue pounding it with grenades.

* ThatOneLevel: The section of the game where the player has inserted the 3 tablets into the Observatory and has yet to unlock the elevator that leads back to the training facility can be this; especially on Hard for one simple reason as the Observatory room is lowered so the doorway back to the facility now leads to the terrace, which has ''two Eliminators'' after the basement which can ''wreck'' the player or force them to waste a decent chunk of much-needed ammo on Hard mode if the player needs to backtrack for any items and what makes this ''really'' evil is that [[spoiler: Rebecca may very well have to make this journey on her own if this is after Billy is separated from her.]]

* ThatOneLevel: The section of the game where the player has inserted the 3 tablets into the Observatory and has yet to unlock the elevator that leads back to the training facility can be this; especially on Hard for one simple reason as the Observatory room is lowered so the doorway back to the facility now leads to the terrace, which has ''two eliminators'' after the basement which can ''wreck'' the player or force them to waste a decent chunk of much-needed ammo on Hard mode if the player needs to backtrack for any items and what makes this ''really'' evil is that [[spoiler: Rebecca may very well have to make this journey on her own if this is after Billy is seperated from her.]]

** Who's Got Herb and This is Serious Business, the two achievements/trophies that require a no healing run. A problem with this is unless you are god tier at dodging, you are going to be in caution or even danger for most of the game. This is also a problem playing as Rebecca, who is so frail in this game that you're likely to tear your hair out. The other is using the green chemical that heals poison as there are four spider enemies and the chess puzzle where if you make the wrong move, you'll release poison gas which can poison both characters.

** Who's Got Herb and This is Serious Business, the two achievements/trophies that require a no healing run. A problem with this is unless you are god tier at dodging, you are going to be in caution or even danger for most of the game. This is also a problem playing as Rebecca, who is so frail in this game that you're likely to tear your hair out. The other is using the green chemical that heals poison. There are four spider enemies and the chess puzzle where making the wrong move, you'll release poison gas which can poison both characters.

** Rebecca is disgustingly frail. While this may have been intentional to put more emphasis on Billy being the fighter of the two, there's a difference between can't take much punishment and "three attacks put Rebecca into orange caution status." It's frustrating using double the healing items necessary if you're not careful, but the game also has various goddamn enemies such as Eliminators and leech zombies who are hard to avoid regardless.

** Who's Got Herb and This is Serious Business, the two achievements/trophies that require a no healing run. A problem with this is unless you are good at dodging, you are required to beat the game without healing. This is also a problem if you're playing as Rebecca, who is so frail in this game that you're likely to tear your hair out. The other is using the green chemical that heals poison. There are four spider enemies and the chess puzzle where making the wrong move, you'll release poison gas which can poison both characters.

* EvilIsSexy: The young James Marcus seems to have been invented for the sole purpose of adding more {{Bishonen}} to the series.

** However, it’s also got a sizable amount of detractors who see it as one of the weaker games in the series for its [[ScrappyMechanic frustrating item management and dual character control scheme]], a weaker story that is essentially a retread of the Mansion Incident, and noticeably harder difficulty, making some parts of the game less scary and fun than the remake of the first game by comparison.

* ContestedSequel: ''Prequel'' in this case.

** However, it’s also got a sizable amount of detractors who see it as one of the weaker games in the series for its [[ScrappyMechanic frustrating item management and dual-character control scheme]], a weaker story that is essentially a retread of the Mansion Incident, and noticeably harder difficulty, making some parts of the game less scary and fun than the remake of the first game by comparison.

** Who's Got Herb and This is Serious Business. The two achievements that require a no healing run. A problem with this is unless you are good at dodging, you are required to beat the game without healing. This is also a problem if you're playing as Rebecca, who is so frail in this game that you're likely to tear your hair out. The other is using the green chemical that heals poison. There are four spider enemies and the chess puzzle where making the wrong move, you'll release poison gas which can poison both characters.

* TheyChangedItNowItSucks: Many fans complained about the changes to Rebecca's face in the HD remaster. Her original face from the 2002 game was based on Japanese pop star Music/AyumiHamasaki. However since Capcom no longer has the rights to Hamasaki's likeness, they attempted to cover up her original face in the HD remaster with lots of mascara.

* ContestedSequel: ''Prequel'' in this case. The game has plenty of fans that liked it for being the last game to stick true to the series' survival horror roots before going into ActionizedSequel territory, for expanding on the original game's story and for [[AuthorsSavingThrow turning Rebecca Chambers from a scrappy to a fan favorite character]], claiming it’s essential to the series. However, it’s also got a sizable amount of detractors who see it as one of the weaker games in the series for its [[ScrappyMechanic frustrating item management and dual-character control scheme]], a weaker story that is essentially a retread of the Mansion Incident, and noticeably harder difficulty, making some parts of the game less scary and fun than the remake of the first game by comparison. A smaller third group believes that [[EnjoyTheStorySkipTheGame the story itself is fine, but the gameplay is repetitive]].

* PortingDisaster: The Switch version has [[LoadsAndLoadsOfLoading longer loading times]] compared to ''any'' other version of the game (and not just a few more seconds, a loading screen in this version can go up to ''35 seconds''). Due to the longer loading times, getting a S rank in the Switch version is close to impossible as the timer still works during the loading screens. There are also missing textures and shaders (the box for the gondola in the treatment plant being the most egregious example), and the last few cutscenes have audio issues due to the longer loading times making the whole thing off-sync. There's also a GameBreakingBug reeking of ObviousBeta only in this port, if Billy and Rebecca split up, if the non-controlled partner die, the game implodes on itself and just crash or reset to the prologue cutscene if no save data is detected.

* MoralEventHorizon: Billy's flashback reveals that [[spoiler:his commanding officer commanded his unit to kill an African village of 23 people simply because they were given wrong information of a supposed guerrilla hideout. Billy tries to stop him, but he was knocked out for his trouble. And thus, Billy was WronglyAccused for a crime he didn't commit]].

* HilariousInHindsight: The unlockable submachine gun appeared to have been a modified version of the Heckler & Koch MP5. However, it ended up bearing a striking resemblance to the SIG-Sauer MPX, released approximately 13 years after the game.

* PolishedPort: The HD remaster is a marked improvement over the original, as it has better models, animation, and lighting (however, with a few background animations changed or cut), and the addition of an analogue control scheme. That said...
* PortingDisaster: The Switch version has [[LoadsAndLoadsOfLoading longer loading times]] compared to ''any'' other version of the game (and not just a few more seconds, a loading screen in this version can go up to ''35 seconds''), and due to the longer loading times, getting a S rank in the Switch version is close to impossible (as the timer still works during the loading screens). There are also missing textures and shaders (the box for the gondola in the treatment plant being the most egregious example), and the last few cutscenes have audio issues due to the longer loading times making the whole thing off-sync. There's also a GameBreakingBug reeking of ObviousBeta only in this port, if Billy and Rebecca split up, if the non-controlled partner die, the game implodes on itself and just crash or reset to the prologue cutscene if no save data is detected.

* VindicatedByHistory: ''Zero'' had to compete with being released after the remake of the first game, which considering the incredible reception to that game, was no easy task. It also introduced a lot of new features like the partner system and lack of item boxes, and both were disliked by just about everyone. With the HD re-release of the game, however, a lot of detractors have been much kinder to it, and have stopped comparing it to the ''[=RE1=]'' remake. It's now regarded as a flawed, but ultimately entertaining and unique entry in the series.

* FanPreferredCouple: Many of the game's fans have admitted to have shipped both Billy and Rebecca.

* HilariousInHindsight: The submachine gun that's unlocked after beating the game with either an S or A rank on Normal or Hard mode strikingly resembles the SIG-Sauer MPX, which was released approximately 13 years after the game.
* InferredHolocaust: One [[WildMassGuessing possible reason]] [[spoiler:Billy]] didn't show up in later games? The last you see of him is him walking into a forest infested with man-eating monsters.

* CompleteMonster: [[EvilutionaryBiologist Dr. James Marcus]] was one of three co-founders of Umbrella Corporation and a MadScientist without regard for anyone or anything unlucky enough to get in his way. Running the Umbrella training facility in the Arklay Mountains, Marcus subjected at least 20 people to [[PlayingWithSyringes experimentation]] with the [[SyntheticPlague T-Virus]], resulting in their deaths. After being assassinated by Umbrella CEO Oswell E. Spencer, he was resurrected when his memories and consciousness were absorbed by his most recent creation, the Queen Leech. Desiring revenge against Umbrella, he leaked the T-Virus under the Spencer Mansion and on the Ecliptic Express, killing dozens of people and partly precipitating the crisis that led to the contamination of Raccoon City itself. He had every intention of causing large-scale destruction--when Rebecca and Billy finally encounter him, he gleefully expresses [[OmnicidalManiac his desire to destroy the entire world]]. Callous and amoral, Dr. Marcus's complete lack of humanity predates his transmutation into a literal monster, which merely gave him the means to demonstrate the true and terrifying extent of his depravity.

* PortingDisaster: The Switch version has [[LoadsAndLoadsOfLoading longer loading times]] compared to ''any'' other version of the game (and not just a few more seconds, a loading screen in this version can go up to ''35 seconds''), and due to the longer loading times, getting a S rank in the Switch version is close to impossible (as the timer still works during the loading screens). There are also missing textures and shaders (the box for the gondola in the treatment plant being the most egregious example), and the last few cutscenes have audio issues due to the longer loading times making the whole thing off-sync. There's also a GameBreakingBug reeking of ObviousBeta only in this port, when Billy and Rebecca have to split up in the laboratory, if the non-controlled partner die, the game implodes on itself and just crash.

* PolishedPort: The HD remaster is a marked improvement over the original, as it has better models, animation, and lighting, and the addition of an analogue control scheme.

* PortingDisaster: The Switch version has [[LoadsAndLoadsOfLoading longer loading times]] compared to ''any'' other version of the game (and not just a few more seconds, a loading screen in this version can go up to ''35 seconds''), and due to the longer loading times, getting a S rank in the Switch version is close to impossible (as the timer still works during the loading screens). There are also missing textures and shaders (the box for the gondola in the treatment plant being the most egregious example), and the last few cutscenes have audio issues due to the longer loading times making the whole thing off-sync.

* CompleteMonster: [[EvilutionaryBiologist Dr. James Marcus]] was one of three co-founders of Umbrella Corporation and a MadScientist without regard for anyone or anything unlucky enough to get in his way. Running the Umbrella training facility in the Arklay Mountains, Marcus subjected at least 20 people to [[PlayingWithSyringes experimentation]] with the [[SyntheticPlague T-Virus]], resulting in their deaths. After being assassinated by Umbrella CEO Ozwell Spencer, he was resurrected when his memories and consciousness were absorbed by his most recent creation, the Queen Leech. Desiring revenge against Umbrella, he leaked the T-Virus under the Spencer Mansion and on the Ecliptic Express, killing dozens of people and partly precipitating the crisis that led to the contamination of Raccoon City itself. He had every intention of causing large-scale destruction--when Rebecca and Billy finally encounter him, he gleefully expresses [[OmnicidalManiac his desire to destroy the entire world]]. Callous and amoral, Dr. Marcus's complete lack of humanity predates his transmutation into a literal monster, which merely gave him the means to demonstrate the true and terrifying extent of his depravity.
* ContestedSequel: ''Prequel'' in this case. The game has plenty of fans that liked it for being the last game to stick true to the series' survival horror roots before going into ActionizedSequel territory, for expanding on the original game's story and for [[AuthorsSavingThrow turning Rebecca Chambers from a scrappy to a fan favorite character]], claiming it’s essential to the series. However, it’s also got a sizable amount of detractors who see it as one of the weaker games in the series for its [[ScrappyMechanic frustrating item management and dual-character control scheme]], a weaker story that is essentially a retread of the Mansion incident, and noticeably harder difficulty, making some parts of the game less scary and fun than ''[=REmake=]'' by comparison. A smaller third group believes that [[EnjoyTheStorySkipTheGame the story itself is fine, but the gameplay is repetitive]].

* PolishedPort: The HD remaster is a marked improvement over the original, for all the same reasons as ''[=REmake=]'' - better models, animation, and lighting, and the addition of an analogue control scheme.
* RescuedFromTheScrappyHeap: Rebecca was easily the least popular character of ''Resident Evil 1'', but her starring role in this game elevated her to being a fan favourite.