Some of them are on PPS4/1 (Auto Race, Football games, and the newer VFD Football game too, this 1: https://handheldmuseum.com/Mattel/WCFB.htm). Missing MCU emulation, but might not be too hard to add to MAME since standard PPS4 is already emulated. Kevtris dumped the VFD game ages ago, older games are not dumped.
Basketball, Soccer, Hockey are on COPS I (COP400 is COPS II, COPS I is MM57xx series).
Edited by gregf (03/23/21 05:41 PM)
hap and company tossed MAME's car keys to Mattel 1970s led games fans user base *edited*