Bugs in Blood
In E2M4: The Overlooked Hotel, the player can pass through the gate before the end of the level, by crawling, without the moon key. Also the intermission screen states that there are 17 secrets, although there are actually 19.
In E2M5: The Haunting, there is a fireplace that contains a secret. Each time you visit the secret, it credits you, artificially inflating the total at the end of the level.
In E1M3: Phantom Express it is possible to survive jumping off of the front of the train if you do it quickly enough. There is also a spot you can go where the train will not come and hit you. In addition, there is another glitch in which one of the zombies that emerge from the coal car will already be emerged and standing dormantly between the coal car and engine on the right side of the train. It will not interact with the player unless they walk up to the coal car at the point where it was intended to emerge, at which point it will begin attacking like usual. It can also be killed easily. Fans have come to refer to it as the blind zombie bug.
In E4M5: Fire and Brimstone, the skull key, which is vital for completing the level normally, is nowhere to be found.
In E5M2: Old Opera House, there is a secret which will not increase the secrets count, possibly due to a bug, so your best possible score will be a total of 3/4 secrets at the end of the level.
In E6M1: Welcome To Your Life (Plasma Pak Episode), directly behind you from where you spawn there is an alley way with a back entrance and a zombie. Killing the zombie, regardless of the weapon used, always results in his corpse and drop/loot items disappearing through the floor. It is also possible to, if walking at the right angle, shoot to the top of the stairs when approaching them from the side almost as if the eva gall cheat is activated.
Version 1.21 (One Unit: Whole Blood)
The games intro logos (Monolith & GTi) do not play regardless of weather or not you have the smaker video and wav audio files copied to your disk. They may have been intentionally disabled by Monolith to solve VESA issues (Check the game's included readme.txt file, section "CHANGING VIDEO MODES" and "MATROX MILLINEUM" & "MYSTIQUE"), though this is just a theory by some. See more here.
The add-on's executable is incapable of passing arguments to the main Blood executable.
The add-on has issues running on machines with a 200MHz or faster processor.
Voxels are not supported.
Statusbar/HUD is scaled wrong as well as other graphical inconsistencies.
Memory leaks followed by constant crashes.
The game's damage is scaled wrong when loading from a save (does not effect new games or starting from the beginning of a level). An unofficial patch to correct this issue was created by a user on gog.com but later abandoned due to other issues it caused. The thread can still be found here. An additional improvised fix/workaround can also be found here. This problem is corrected in BloodGDX, NBlood and the official Fresh Supply.
Not necessarily even a bug, but an annoying limitation of the Build engine none the less; standing in the opening of sliding doors (such as the mausoleum doors in Cradle to Grave) when they automatically close can result in instant death to monsters and players alike. With enough skill and good timing however, it can be an effective method for eliminating enemies on higher difficulties granted you can coax them into the doorways at the right time.
Games based on the Build engine (such as Blood) crash when used on systems with PCI sound cards.
- "Flame guy": a well known bug induced character.
- Bugs in Blood II: a list of bugs in the various versions of Blood II: The Chosen.
- Installation for a list of workarounds and patches for some common problems encountered when playing Blood.
- Blood Bugs Section - XL Engine Forums
- Known Blood Bugs? - The Postmortem Forums
- Random quirks in Blood - The Postmortem Forums
- LOL - YouTube
- Blood - Spider Problems - YouTube
- Blood - weapon pick-up glitch in multiplayer - YouTube
- Blood - The Haunting: Super Secret + "Glitches" (E2M5) Video Reply - YouTube
- Blood - Life Leech Fun - YouTube
- Blood - Burning Cultist Glitch - YouTube
- BLOOD - This Glitched Flameguy Is Chasing Me - YouTube