General Assembly Question $4000 vs $0100
Well, if you are going to enter MSXDev'22, for example, then it doesn't really matter where the code starts.
I mean, while MSX is just an umbrella name for many many kinds of computers using a similar operating system, you could still just target just one of these hundreds of computer models.
For example, you could just target that one japanese MSX computer brand with 8k RAM with that special keyboard. Then all you need is write the driver for that specific keyboard, and maybe the joystick, and perhaps the output to a printer, and perhaps a driver to that specific brand of disk drive, and a driver for the music chip, and then you're done. If you don't have any input or output, then you can skip all those drivers too!
Or if you want to support all the machines, then all you need to do is to write a detection routine for all the models and then write all the drivers for all these models and then you're all set!
Then again, for MSXDev'22, you only need to support one (obscure) MSX model (or emulator). At least, that's what I understand from the rules.
And if you have no need for RAM, you can use almost all 64K of ROM memory just for yourself too! You can even set up a stack within the 64K ROM to POP things. Of course you can't PUSH things because nothing can be overwritten, but that's not a big deal for someone like you.
Most people won't implement these ideas, but I like you being different, and you don't have to support every single model anyway for MSXDev'22.
Looking forward to your finished project. 
Interesting way to read the rules, not sure if that is the intent . I find it hard to believe you won’t get points docked for such unnecessary lack of compatibility. Though you’ll probably get a bonus point for creative interpretation of the rules.
Tho a game that uses pattern table mirroring so does not work on Toshiba VDPs would be more debatable. I can already see the controversy arising .
Interesting way to read the rules, not sure if that is the intent . I find it hard to believe you won’t get points docked for such unnecessary lack of compatibility. Though you’ll probably get a bonus point for creative interpretation of the rules.
Tho a game that uses pattern table mirroring so does not work on Toshiba VDPs would be more debatable. I can already see the controversy arising .
Perhaps it's just me coming from the Spectrum community, but I've always found this position on MSX software so surprising. It's strange to hear that people could find it "unneccesary" just because some people want to target specific model(s) for this contest. The point of this year's contest is that you can choose whatever specific hardware you want to target, without people complaining about it.
If someone wants to target one specific model or hardware, that should be fine. If someone wants to use a MIDI keyboard to play a game, that's fine. If someone wants to make a game that works on his own MSX, that should be nice too. And if someone wants to target only TurboR, that should be celebrated as well. And if someone still wants to make an MSX1 entry this year, that should not be a problem either. Perhaps the ones that were disqualified last year could be re-entered again for this edition.
Making experimental games is a good thing, even for the MSX. I understand that over here many people would rather want established franchises that are already great on other platforms, and they are right that Spectrum Ports are really great. Perhaps the key there is that the Spectrum community have no problems with eccentric games or experimental ones, and therefore people don't mind releasing games on the Spectrum first. In this community, those developers would get the words "unneccesary", "controversy" or "debatable" instead.
Besides, they will all release a game for the MSX. They all finished a game! As someone who actually have had several entries in MSXDevs, I'd say finishing is the most important part. For example, don't spend too much time to make your game working with a 48K ROM, but make a smaller one that fits in 32K (or even smaller) that you can finish now.
(Sorry for off-topic.)
