MIS
From MAMEDEV Wiki
This page is designed to allow for a quick look over all the drivers with a GAME_IS_SKELETON or GAME_IS_SKELETON_MECHANICAL flag.
aces1
Fruit machine hardware. Z80 based?
acesp
Fruit machine hardware. HD6301 based.
allied
Pinball hardware.
alvg
Pinball hardware.
astrafr
Fruit machine hardware. M68000 based.
astropc
Fruit machine hardware. Possibly PC based.