Mappy enhanced patch

Thank Tiny Yarou.

I would be happy if you can convert "Dunk Shot Super Players" (Hal) to MSX2.
This game would be much better if the sprites were not blinking as much.

PS: I fixed the ROM and reupdated my link. :D

Yep, really a good work, thanks!

MAPPY, there was some reason that is easy to enhanced for MSX2.

1) Program and data are in 16KB or less
I was able to put program and large data for MSX2 in a vacant area.

2) Sprites are used only 32 or less
MSX2 can define only 64 sprites(16x16), as many as MSX1.
Because MAPPY is using sprites only 32 or less, I was able to make two-ply sprites easily for MSX2.

3) Use SCREEN1
Since MAPPY works on SCREEN1, each BG-character is a single color. So I was able to freely change the palette.
For example, Konami is making full use of the specs of SCREEN2, and using many colors in each character, there is a large influence just to change only one palette.

Other game might not be easy as MAPPY...

Did you try? Tiny Yarou said that the SCC sound is not really good.

I have played several times this great MSX2 Mappy and enjoyed a lot! It looks great! Real arcade experience! Thank you!! I have always hoped that MSX-1 Mappy could have used more sprites to make multicolour sprites. At least to give Mappy himself a pair of eyes and/or grey body colour. It would be nice if somebody could hack MSX-1 original to make such changes. MSX-1 Mappy has a sprite flicker routine already, though I don´t know if it will still work properly after more sprites have been added. At least I would like to know if such hack is possible. Even better if such hack is possible to add to same .rom and it would work on MSX-1 too. Would it be any easier solution to modify MSX2 Mappy to use MSX-1 colour palette and add more sprites? That would not run on MSX-1 but it would look cool!