History YMMV / ResidentEvil0

* HilariousInHindsite: The submachine gun that's unlocked after beating the game with ether an S or A rank strikingly resembles the SIG-Sauer MPX, which was released approximately 13 years after the game.

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

* AuthorsSavingThrow: The developers explained that the reason why Crimson Heads were not included in ''[[VideoGame/ResidentEvil0 0]'' (after being retroactively introduced in the ''[[VideoGame/ResidentEvil REmake]]'') is because Rebecca Chambers and Billy Coen don't spent much around the same place as Alpha Team in ''[=REmake=]''.

* AuthorsSavingThrow: The developers explained that the reason why Crimson Heads were not included in ''[[VideoGame/ResidentEvil0 Zero]]'' (after being retroactively introduced in the ''[[VideoGame/ResidentEvil REmake]]'') is because Rebecca Chambers and Billy Coen don't spent much around the same place as Alpha Team in ''[=REmake=]''.

* EnsembleDarkhorse: Billy. So much to the point fans desperately want Creator/{{Capcom}} [[spoiler: to reveal his fate.]]
** Despite the fact she's the focal character of the game, Rebecca is herself one as far as the series itself is concerned. Fans of her were more than pleased to see her get her own game and hope for more in the future.

* NintendoHard: On the Hard difficulty, this is comparable to ''ResidentEvilCodeVeronica'' as the overall lack of ammo and healing items is among the stingiest in the entire series. Unlike that game, however, you do not have a decent knife to help conserve ammo, so you must make every shot count, avoid enemies when possible and only heal when absolutely necessary. If you don't have an excess of ammo for your best weapons and healing items for the final boss battle... [[UnwinnableByDesign forget it]]. Have fun starting the entire game over!

* NintendoHard: On the Hard difficulty, this is comparable to ''ResidentEvilCodeVeronica'' as the overall lack of ammo and healing items is among the stingiest in the entire series. Unlike that game, however, you do not have a decent knife to help conserve ammo, so you must make every shot count, avoid enemies when possible and only heal when absolutely necessary. If you don't, sooner or later you will hit a brick wall, and if you don't have an excess of ammo for your best weapons and healing items for the final boss battle... [[UnwinnableByDesign forget it]]. Have fun starting the entire game over!

* NintendoHard: On the Hard difficulty, this is comparable to '"ResidentEvilCodeVeronica'' as the overall lack of ammo and healing items is among the stingiest in the entire series. Unlike that game, however, you do not have a decent knife to help conserve ammo, so you must make every shot count, avoid enemies when possible and only heal when absolutely necessary. If you don't, sooner or later you will hit a brick wall, and if you don't have an excess of ammo for your best weapons and healing items for the final boss battle... [[UnwinnableByDesign forget it]]. Have fun starting the entire game over!

* NintendoHard: On the Hard difficulty, this is one of the stingiest in the series in terms of ammo and healing items. You'd better make every shot count, avoid enemies when possible and heal only when you are gravely injured or else you ''will'' find yourself [[UnwinnableByDesign screwed over sooner or later]].

** The leech zombies, without a shadow of a doubt. Tough as nails with an insanely long reach, they cause considerable damage when they hit and when they die they ''explode'' for even more damage. Luckily, [[KillItWithFire fire kills them]] fairly quickly, mitigating the annoyance a bit.

* EnsembleDarkhorse: Billy Coen, so much to the point fans desperately want Capcom [[spoiler: to reveal his fate.]]
** Despite the fact she's the focal character of the game, Rebecca Chambers is herself one as far as the series itself is concerned. Fans of her were more than pleased to see her get her own game and hope for more in the future.

* NintendoHard: On the Hard difficulty, this is one of the stingiest in the series in terms of ammo and healing items. You'd better make every shot count, avoid enemies when possible and heal only when you are gravely injured... or else you ''will'' find yourself [[UnwinnableByDesign screwed over sooner or later]].

* EasyModeMockery: If you switch from Normal to Easy, it comes as quite a shock. On average, the Easy mode has two Green Herbs to every Normal Mode's one, plus a handful of first aid sprays. Not only that, but ammo is insanely bountiful. Grenade launcher ammo can be found 5 or 6 times in the game, which is a lot compared to Normal. Also: you will ''never'' run out of handgun ammo. Ever. Heck, for every area past the mansion, you probably will never dip below 200 handgun shots. There's also twice as many shotgun shells, meaning your shotgun will almost never be empty. To make it worse, enemies go down more easily as well, and it takes more damage for your health to go down. Compared to the brutality and scarcity of supplies in Normal, it's a walk in the park. As a consequence, however, you will not be able to unlock almost all of the NewGamePlus goodies unless you complete the game on the Normal or Hard difficulties (the only exception is the Leech Hunter minigame).

* EnsembleDarkhorse: Billy Coen, so much to the point fans desperately want Capcom [[spoiler: to reveal his fate]]

** Which ironically RE0 IS canon so the above instance is clearly just a case of {{Fan Dumb}} all for the sake of one easily unmemorable bad game in the series.

* AuthorsSavingThrow: The developers explained that the reason why Crimson Heads were not included in ''[[VideoGame/ ResidentEvil0 Zero]]'' (after being retroactively introduced in the ''[[VideoGame/ResidentEvil REmake]]'') is because Rebecca Chambers and Billy Coen don't spent much around the same place as Alpha Team in ''[=REmake=]''.

* AuthorsSavingThrow: The developers explained that the reason why Crimson Heads were not included in ''Zero'' (after being retroactively introduced in the "[=REmake=]") is because Rebecca and Billy don't spent much around the same place as Alpha Team in [=REmake=].

* EasyModeMockery: If you switch from Normal to Easy, it comes as quite a shock. On average, the Easy mode has two Green Herbs to every Normal Mode's one, plus a handful of first aid sprays. Not only that, but ammo is insanely bountiful. Grenade launcher ammo can be found 5 or 6 times in the game, which is a lot compared to Normal. Also: you will ''never'' run out of handgun ammo. Ever. Heck, for every area past the mansion, you probably will never dip below 200 handgun shots. There's also twice as many shotgun shells, meaning your shotgun will almost never be empty. To make it worse, enemies go down more easily as well, and it takes more damage for your health to go down. Compared to the brutality and scarcity of supplies in Normal, it's a walk in the park.
** As for the mockery part, you can't unlock any NewGamePlus goodies unless you complete the game on Normal difficulty.
* EvilIsSexy: The young James Marcus seems to have been invented for the sole purpose of adding more pretty-boy eye candy to the series.
* FanonDiscontinuity: Fans who don't like ''Resident Evil: Survivor'' have been known to use the aforementioned ContinuityNod to declare ''Resident Evil 0'' as non-canon.

* {{Narm}}: It's ''Resident Evil''. [[Narm/ResidentEvil What do you expect?]]
* NintendoHard: On Hard difficulty, this is one of the stingiest in the series in terms of ammo and healing items. You'd better make every shot count, avoid enemies when possible and heal only when you are gravely injured... or else you ''will'' find yourself [[UnwinnableByDesign screwed over sooner or later]].

* NintendoHard: On Hard difficulty, this is one of the stingiest in the series in terms of ammo and healing items. You'd better make every shot count, avoid enemies when possible and heal only when you are gravely injured... or else you ''will'' find yourself [[UnWinnableByDesign screwed over sooner or later]].

* NintendoHard: On Hard difficulty, this is one of the stingiest in the series in terms of ammo and healing items. You'd better make every shot count, avoid enemies when possible and heal only when you are gravely injured... or else you ''will'' find yourself screwed over sooner or later.

* EasyModeMockery: If you switch from Normal to Easy, it comes as quite a shock. On average, the Easy mode has two Green Herbs to every Normal Mode's one, plus a handful of first aid sprays. Not only that, but ammo is insanely bountiful. Grenade launcher ammo can be found 5 or 6 times in the game, which is a lot compared to Normal. Also: you will ''never'' run out of handgun ammo. Ever. Heck, for every area past the mansion, you probably will never dip below 200 handgun shots. There's also twice as many shotgun shells, meaning your shotgun will almost never be empty. To make it worse, enemies go down more easily as well, and it takes more damage for your health to go down. Compared to the brutality and scarcity of supplies in Normal, it's a walk in the park.

* {{Narm}}: Again, it's ''Resident Evil''. What do you expect?

* HighOctaneNightmareFuel: It's ''ResidentEvil'', of course.
* {{Narm}}: Again, it's ''ResidentEvil''. What do you expect?

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* FridgeLogic:
** Leeches and leech zombies. Leeches have an anesthetic in their saliva when they bite, so the main characters and the people on the train shouldn't be in pain over them. Leeches are also not acidic, so the leech zombies shouldn't cause that sort of burning to the characters.
*** These things are Marcus's pet project. They form human shapes, have a HiveMind, and have a mouth on their belly, as opposed to a real leech's mouth (which is at the front end of its body). ''[[CaptainObvious These ain't normal leeches.]]'' All bets are officially off.
** Rebecca is a medic, but she starts out with no healing items. This is semi-justified for gameplay purposes, though. But it's still kind of stupid seeing as she's {{the medic}} of STARS.

* {{Badass}}: Billy Coen, a former Marine. In the Umbrella Chronicles version of the game, he uses his handcuffs as makeshift brass knuckles, and is also capable of dropkicking a full grown man in the face.