So I've found a small bit of proof that MK4 (The really dodgy one using a bastardized KF engine) is indeed related to all the other Hummer/JY fighters of the time, and unsurprisingly the proof is in the text:
http://img291.imageshack.us/img291/7935/piratedsimilar.pngYou can see that after the alphabet and number 0-9 in each game, there is a [. .] followed by a [ - ] and a weird little Orb which might have been a pointer of some sort. Also, the numbers use the EXACT same font. MK4 (bottom left corner) also has this. Also, you might notice Garou Densetsu Special's alphabet font was directly ripped and re-used for Street Fighter Alpha Zero 97, the newest and apparently last of Hummer's fighting games (A pretty crappily programmed one at that) and the KF engine's final spin. More proof of common ancestry!
But what I find really weird is how poorly made MK4 is. The music, the gameplay physics, the timing, the charchter select screen - it all SUCKS in comparison to MKII and MKII special, which of course came first. The grabs don't work right, and you can cause a never-ending round by rapidly pressing B and kicking your dead opponent as the round is attempting to end. In this I see several possibilites - They got one or more new programmers (which would mean some of the old/more experienced programmers left) right beore development for this game started (of course, using the KF engine- they see it as their ol' reliable) and as they went to work it became increasingly obvious they had no idea how to, you know, MAKE A GAME. Sheesh this thing is bad even compared to SFII., which to be fair was the first of the pirated fighters.
On a related note, music from Harry's Legend is in Mortal Kombat 4.. if you make it to Stryker's stage, listen close - its the "level select" music from Harry's Legend, but in a different key! Its like another case of DK JR's stage in Fart Fighter, and the boss music from Jing Zin Quan or whatever that old supertone RPG is called. Crazyness, people!
EDIT: This video will prove to you guys that MK4 came after Harry's Legend and Garou Densetsu Special, and paved the way to Street Fighter Alpha Zero '97 (AKA The Death of Hummer Team)
http://www.youtube.com/watch?v=U2gwLh6FFX4This pirated NES game stuff just gets weirder and weirder. I'd like to use the PC they were building these games from, and shuck off my own pirated NES game using the Kart Fighter engine - Have a Mari V.S. Rayden battle, or maybe Chun Li V.S. Sub Zero... lmao. That would kick ass.