Popolon updated msxDS. msxDS is a MSX/MSX2/MSX2+ emulator for DS/DS Lite.

Changes:

Z80 emulation code optimization.
Added Arkanoid paddle controller emulation.
Added Key mapping to L,R for following games (ROM versions only.): Borfes to 5-nin no Akuma (L/R= ESC), Caos Begins (L=F1, R=F2), Dragon Slayer 4 (L=ESC, R=RET), Higemaru Makaijima (L/R= F1), Hi no Tori (L=F2, R=F3), King kong 2 (L/R=F2), The Maze of Galious (L/R=F1), The Treasure of USAS (L=F1, R=F2), Xorz (A=SPACE, B=m) and Yaksa (L=F1, R=F2).

http://www.alternate-fmsxds.webs.com/index.html