Yes, programming/porting.
http://chudahs-corner.com/soundtrack...alog=KTCR-1363
The synthesizer version tracks from the Kitty Records disc were, I believe, used on the box set. And even if they weren't, the DS version of Shiren the Wanderer also listed Matsuo for "synth arrangement" IIRC (I beat that game, saw it in end credits). I'm pretty sure Matsuo does the down-sampling/synth work for all of Sugiyama's "Shiren the Wanderer" games.
Ramza