Okay, this is what I've written up so far. I need to atleast fill maybe... The max time I have up there is 60 minutes. I have videos and stuff and I'll have my friend and I have a couple of exhibition matches.
In the year 2002 the doujin company Type-Moon, maker of the h-game Fate/Stay Night, collaberated with French-Bread to make a fighter named Melty Blood. The game was a spin-off of the original h-game Tsukihime. But instead of 100 percent reading and choosing paths, this game had fights to choose your path. It is reminicent of the story mode in the Guilty Gear XX series. In later version of the game there was an "arcade mode" where you choose a character and fight through different characters that are CPU controlled.
Gameplay is pretty different from most fighters, but some people say it's similar to Guilty Gear, and some say it's similar of the Darkstalker series or Capcom's famous Marvel vs. series.
With 23 playable characters (many of them are alternate versions) you can mix and match various fights with each of the characters.
Melty Blood first started on the PC, you able to play as characters previously featured in Tsukihime: Shiki Tohno, Akiha Tohno, Hisui and Kohaku as a pair, Arcrueid, Ciel, and a Melty Blood exclusive Sion Eltnam Atlasia. The first version only allowed the person to play through the "Story Mode." The game play was flawed, extremly broken, and is alot more different then the gameplay featured in the later games. The game featured a stamina bar, which only allow you to dash a certain amount of times and then you would have to stop dashing and let it regenerate. It also featured slower gameplay, and was not very exciting. Type-Moon released patches to the game to make it more enjoyable, and then later on, Type-Moon released a version that unlocked all of the alternate, and other characters that were seen in the story line. It's unclear as to why Type-Moon did this, but some think that they thought they would not be able to produce any more games, and thus releasing a last patch to fans. There are also translation groups translating the story mode, and is almost fully complete.
Then in 2004, they released an expansion to the game, titled Melty Blood Re-ACT. It furthured the "Arcade mode" version, new gameplay system, such as the Blood Heat system, which is similar to the original Darkstalkers bar. You build meter, and then it hits the max and your in a state where you can do Arc Drive special moves, or go into another state, called Blood Heat where you can do and enchanced Arc Drive or Last Arc moves. It also fixed character balance issues, and alternate version character's movesets and added new characters. Len, Satsuki Yumidaka from Tsukihime, White Len, and another character from Tsukihime Aoko Aozaki, and a joke character Neko Arc. White Len, Aoko, and Neko Arc are only boss characters though and were unable to be played. There were hacked patches released to unlock the boss characters.
Then in 2005, Ecole made an arcade version of this game, using Sega's NAOMI arcade system. Now the NAOMI, is particularly one of the most powerful arcade systems out there, and games such as Capcom vs SNK 2, Guilty Gear XX Accent Core, and Marvel vs Capcom 2. The changes from Re-ACT and Act-Cadenza were a handful. It further modified the game system, adding mashing button to lower combo damage from opponent, a modification on the "shielding" system, now you can use it to be a parry with no disadvantages, or you can hold the button, but drains your heat bar. A circuit spark was added to the game, allowing the user to escape, similar to the "Burst" system in Guilty Gear XX series, and a dodge was added. You can perform the dodge by pressing down and the A and B button simultaniously. There was also cosmetic changes in the game, like better animation, and effects. Sound quality was changed too, and new stages and soundtracks were added. There were even more characters added, many of them boss characters. Aoko Aozaki, Neko Arc were now playable, and a whole new character Kishima Kouma was added. Kouma was from the Kagetsuya Toya games, the man who assassinated the Nanaya family line.
Then later in 2005, Type-Moon released a final patch to the Re-ACT system, named Final Tuned. The patch allowed the player to play two different styles, the original Re-ACT system, or a system that resembles the Act-Cadenza style, but modified to the gameplay system found in previous Re-ACT versions. This would be the last Melty Blood Re-ACT patch to be released.
In 2006, Ecole and Type-Moon released the Act-Cadenza game onto the Playstation 2 console in Japan. It included the Version A, and a newer version soon to be released for another arcade apperance, Version B. The version B released on PS2 would be a little different from the Arcade release for both versions.
Later in 2006, Ecole released a newer version of the Act-Cadenza series, Version B. It changed some balance issues, and added yet 2 new characters. White Len was now playable, and another version of Neko Arc; Neko Arc Chaos, a further gag on the Neko Arc character and Melty Blood characters. There was a demo released on the PC, making rumours of the game being released once again on the PC arise.
Then in 2007 Ecole released yet another upgrade on the Version B series, Version B Correction Edition. It changed character properties, clash frames, tweeked the system even more, and even drastically changed character tierings. Type-Moon also announced that this version would be released to the PC once again. Rumours have it that Type-Moon did this just incase further updates would be necessary it would just be a download, rather than a whole new game.