Originally Posted by kevtris
it might be a reduced pin count version of the D552C like that other game I can't remember the name of. I dumped that part OK using my doodad.
Hopefully! In a few weeks I'll have time to decap it and upload pics.

I got Coleco Head to Head Boxing with a TMS1100 M34018 and Tandy Championship Football 60-2150 with a TMS1100 MP1193.