Marble Madness and/or Gyroscope conversion or clone in SCREEN 1. Surely doable. 
if someone can do 2 pixel scrolling in SCREEN 1, I really don´t care if there are some colourclash on edge of ravines as long as game scrolls smoothly enough. It may be playable with 4 pixel scrolling too... as Spectrum Gyroscope was FLIP-SCREEN based.... and it was still somewhat playable...
There are NO such like games for MSX like Marble Madness! 
MSX2 conversion is nice too of course, but I feel there is bit more challenge to make it for MSX-1, I think.
GUITAR HERO for the MSX 
Well, somebody has made it for the Commodore 64: http://www.youtube.com/watch?v=WyCMM6e1Lbo
where you can also use your very own Toy Guitar from GH3 for playing it
To be honest somebody has already made a DRUM MANIA clone for the MSX2: http://it.youtube.com/watch?v=NBaYI7VAskE
and then... why not a Guitar Hero for the MSX? ;)
Marble Madness and/or Gyroscope conversion or clone in SCREEN 1. Surely doable.
if someone can do 2 pixel scrolling in SCREEN 1, I really don´t care if there are some colourclash on edge of ravines as long as game scrolls smoothly enough. It may be playable with 4 pixel scrolling too... as Spectrum Gyroscope was FLIP-SCREEN based.... and it was still somewhat playable...
There are NO such like games for MSX like Marble Madness!
MSX2 conversion is nice too of course, but I feel there is bit more challenge to make it for MSX-1, I think.
What about Bubbler?
Ultimate Play The Game had fancy graphics back in the days .
Marble Madness and/or Gyroscope conversion or clone in SCREEN 1. Surely doable.
if someone can do 2 pixel scrolling in SCREEN 1, I really don´t care if there are some colourclash on edge of ravines as long as game scrolls smoothly enough. It may be playable with 4 pixel scrolling too... as Spectrum Gyroscope was FLIP-SCREEN based.... and it was still somewhat playable...
There are NO such like games for MSX like Marble Madness!
MSX2 conversion is nice too of course, but I feel there is bit more challenge to make it for MSX-1, I think.
I have seen a MSX 2 version of Marble Madness made in Basic a long long time ago.
For MSX 1 Xyzolog is not THAT far off from the Marble Madness concept....
Marble Madness and/or Gyroscope conversion or clone in SCREEN 1. Surely doable.
if someone can do 2 pixel scrolling in SCREEN 1, I really don´t care if there are some colourclash on edge of ravines as long as game scrolls smoothly enough. It may be playable with 4 pixel scrolling too... as Spectrum Gyroscope was FLIP-SCREEN based.... and it was still somewhat playable...
There are NO such like games for MSX like Marble Madness!
MSX2 conversion is nice too of course, but I feel there is bit more challenge to make it for MSX-1, I think.
I have seen a MSX 2 version of Marble Madness made in Basic a long long time ago.
For MSX 1 Xyzolog is not THAT far off from the Marble Madness concept....
Xyzolog is single screen non-scrolling game...
but I didn´t remember at all that Bubbler was some sort of marble madness style ball game, or maybe spindizzy style? Must try it someday.
Sounds like a nice VSCREEN project 
Sounds like a nice VSCREEN project
Got a couple more to finish before starting yet another one.
But that one would be rather easy.