Every game starting from DS, the WII version and 3ds are playable fully. I can't recommend playing any of those on emulators as there are imput lags making the experience really frustrating and being far from perfect.

All

I have 49 out of 50 game perfects using Dolphin for the wii emulator and I got them within a few weeks, so it is possible to emulate Rhythm Heaven Fever nearly perfectly.

Hi.
Thanks for bringing this topic up again.
So, if I get a 2Ds or 3Ds console, then I can play all the games, including the gba game as well?

Hi. I'll quickly put in my two cents here. Since I have no way to buying real hardware, I emulate everything. I got the GBA, DS, and Wii games to work perfectly with pretty midle of the road hardware, I was easilly able to get  all 50 perfects on all three games. The thing with the GBA and DS though, is that you need to mess around with configurations to get the best result. So if you are interested, I can give you some instructions. Dolphin for the Wii works out of the beox basically, so you really don't need to change anything besides setting up your controls. Unfortunately, I don't think emulating Megamix is possible, yet, but I would love to play that. Maybe at some point in the future I'll buy myself a 2DS.

Hi. Unfortunately, Dolphin uses different maps for Gamecobe and Wii, so you can use your gamepad in theory, but you would have to write the controls in separately. I can write a quick menu guide, but I want there to be a reason for my updated playthrough I am starting. I focus on menu layouts much more on the parts I have already recorded, and will definitly try explaining any screens as I get to them. If listening to it bit by bit is not your thing, and if you think you can get by with a quick text rundown  about the file select menu and level select screen, I could do that, it's just, my schedule is a little busy at the moment, and I want to get a little ahead so I can release the parts on a kind of regular basis. .

funny thing I got RH for the GBA and RH for the DS If someone has those BT folders from the GBA and DS version can they upload to dropbox please? thanks

Hi. At post 13, I will try to upload part1 on friday at the latest, then I'll see if I can record some more parts before uploading part2. It all depends on how much free time I have. But thanks for being patient.
At post14, I am curious, I am not sure what you are talking about, what would there be in a folder like this? Do you mean save files or sounds or something?
At post 15, There are two ways you can play two rh games with one consol, the most likely being the 3DS or 2DS, where you could play Rh DS and Megamix with one consol, the other case may be if you get an original DS with e GBA slot, that allows you to play Rhythm Tengoku as well as Rh DS. Unfortunately, RH Fever is Wii exclusive and you can't get it any other way.

Wow. Thank you very much @zseli and @KenshiraTheTrinity.

Hi. Yeah, it's NVDA's mouse tones I'm using, i really would be kinda stuck without them, unless I had a touch screen of some kind. But I don't. Though, the Wii is capable of using motion controls and the censor bar, it is never required to play Rhythm Heaven Fever, except for the phone minigame that is just a bunch of random secret eastereggs. You need the censor bar for that. As for OCR, Maybe it works, i am not running windows 10 so I can' test, and the OCR Add on I have didn't work, for the DS version at least. but in theory, it may work, maybe if I get a fast enough computer with windows 10 on it, I can test that out, but I am just too afraid to upgrade my existing one sine people keep talking about all the performance breaks and bloat and all that. Oh, also, I'm glad you like my playthroughs. Thanks for your feedback.

Hi. The reason is symple. Rhythm heaven for DS, aka Rhythm Tengoku Gold, is a completely different game from Rhythm Heaven Megamix, in japanese, Rhythm tengoku, the best, plus. Megamix  can be played by using the buttons, including the D-pad, but since the touch screen on the original DS was a gimmic, the developers disabled any button from working, apart from the start button, and the sholder buttons "L" and "R", for bending guitar notes. But besides that, no other buttons do anything, unless, of course, you are using the Lua script that enables the buttons to act as a simulated mouse. I hope that answers your question. I have never played megamix myself, since it can't be emulated at this time, or at least not that I know of. It will be a lot of fun when I do get to play it though.