MSX was bad programmed?

No one have info?

Surprise!
:D
http://www.msx.org/Deva-preview.newspost5448.html

Thanks!

Yes, it is screen 4, but regarding further technical details, I think it's better if Bart/norakomi explains since he programmed it all.

When someone explains the technique behind it, I would also be interested in which parts are and are not possible on MSX1. Apart from the obvious colour redefinition and more/colourful sprites, it seems most of this would be feasible on MSX1. Which is quite an achievement. Could this, with minor modifications on colours and sprites, be submitted to MSXDev or is there more at play like copy instructions and scrolling registers?

When someone explains the technique behind it, I would also be interested in which parts are and are not possible on MSX1. Apart from the obvious colour redefinition and more/colourful sprites, it seems most of this would be feasible on MSX1. Which is quite an achievement. Could this, with minor modifications on colours and sprites, be submitted to MSXDev or is there more at play like copy instructions and scrolling registers?
If it is screen 4 it is 100% possible on MSX1 except for the back scrolling 4px layer featuring lots of tiles (MSX2 has bigger VRAM), the multicolour sprites (8 per scanline) and the custom color palette. Invasion of the Zombie Monsters (check this video, from 0:36) uses the same technique but using screen 2 and without hardware sprites for the characters (notice the 3 scroll layers: front 8px, background mountains, trees and clouds 4px and stars in the sky 2px). As you can see it moves pretty fast and it handles horizontal and vertical scroll too: as far as I can see, it is pretty much the same technique but Deva does it the better/MSX2 way ;-)

Check this ... cool and writen in turbo basic as you can see in the video...
www.youtube.com/watch?v=LNyfkCnyQXg&feature=fvsr