Send me some names and I'll add to the list.
The following games were announced in the 1993 Club Duo Catalog (in addition to King of the Monster 2, Macross 2036, and Battle Load Runner, whic you already got):
Macross 2036SLG
Wizardry 1 & 2
World Heroes (WD)
People on this forum have said the KotM2 and WH were finished and playable.
The Official TG-16 Game Encyclopedia previews an
alternate version of Camp California. Some guy has appeared here twice over the years flaunting pictures of it.
Let's not forget
Strider for the Supergrafx.
Xymati and
PC Gunjin should also be included - there were announced by an established developer and screenshots were released. Xymati has been switched to the xboxlive and nothing has been heard regarding PC Gunjin for five years.
I don't know anything about them, but, for the sake of completeness, other folks have mentioned a PCE
Batman platformer and a U.S. release of
Cosmic Fantasy 1.
Finally, while they can hardly be considered games, The Official TG-16 Game Encyclopedia also lists the following educational "
Discis Books":
The Tale of Peter Rabbit
Benjamin Bunny
Scary Poems for Rotten Kids
Cinderella
A Long Hard Day on the Ranch
Thomas' Snowsuit