Ok I've got a treat. I bought the River City ransom all stars dodge ball game for pc from miracle kidz and it came with an omake disc with a bunch of great stuff. It is mostly for the dodge ball game but some things would be interesting for anyone.
http://www.mediafire.com/?a0orz4l5bzqaycgFirst of all, there's all kinds of omake teams for the dodge ball game, I would love to get these teams translated sometime (The rest of the stuff for the dodge ball game is in engrish if you update it, online omake download included) only interesting if you've got the game (I would release it here but I think its against the rules, are doujin game downloads allowed? They are technically official games now because million and mkidz joined together and released it for wii) note the teams are in .DBCH files which even if you rename them in windows don't show up english in game.
Second there are three ips patches, The big reason why I posted this thread.
one for downtown nekketsu (I babel fished the readme and it says its a beta patch) samurai special (Same) and downtown nekketsu ex debug (I read elsewhere that it is a parody ban patch)
Third arranged mixes of the dodge ball and RCR music (It was said its the original compositions before making it chip tunes but not sure where I read that so take it with a grain of salt).
I thought I would share these because they are part of history, if you are interested in translating the teams on the disc and unengrishing the other teams just pm me and I will send the dodge ball disc. The game came out in 2k7 only in japan through amazon and a few other sites.
Second: I found 2 games from the Japanese Kunio community that are very interesting.
First: is a remake of the samurai special nes game that is quite good
http://www.mediafire.com/?95von9hsqxufsjvFrom what I've read all the text in the game seems to be in .txt files (I saw a kid on youtube insert his own story line and that's what he said) so it wouldn't be hard to translate AFAIK but again I haven't poked around in the files. It is also insanely moddable because someone made it into a river city ransom ex fan game which I've also include.
To set it up extract Jidaigeki0977 then put the bgm files in their respective folders. May have issues on win7
To install the ex mod do the above then copy the ex version over the main install
Second: is a remake of Nekketsu Kakutou Densetsu aka Riki an Kunio as it was known over here for a while
http://www.mediafire.com/?c57ddkh55mdtnloThis one is also insanely modable but mostly in moves/characters, sadly its text is harder to deal with. There is an english patched version here
http://razor--guardian.webs.com/kakutoudensetsu.htm but it is of an older version and the people just used the Crash N the boys names.
The game also has an expansion called the battle edition
http://www.geocities.jp/nekketsukouha920kun/KD_Battle_Edition.html but I am not sure if it is just a mod that makes it more insane or more fun.
There is a semi active mod community for this game
http://nkdc.forum-motion.net/ but sadly it is small and mostly made up of original characters which usually only have appeal to those who make said characters. There are mods for the American T-shirt & Jeans look and such tho and I also saw a video of ex sprites but have yet to find the mods.
The original site for KD is offline but the new one is here
http://www.geocities.jp/kuniokundoesu/ Reason I post the downloads up there is because not only is this site in Japanese but the download links work sporadically. I can't tell you how hard it was to track down this sucker.
http://www.geocities.jp/nekketsukouha920kun/ is a fan site of all things Kunio (Also sadly in Japanese). Its where most people in America get their stuff and he also has a youtube account to show off this stuff.