All I know of are
Monster Girl Quest Paradox and
Super Monsters n' Girls. Not sure if the other games involved in the MGQP collab all did collabs of their own or not, but I don't recall hearing anything about that.
Actually hold on, sorry, I completely forgot about EX4 existing: I think some of the other characters from the MGQP collab showed up in it, but I don't remember. So just as a precaution I'll list the MGQP collab things - ROBFS4U, Parade Buster, Succubus Rhapsodia, Succubus Quest, The Three Charms, Succubus Prison, and... I think another one or two that I don't remember.
On another note, never knew Angelica used this site, but I suppose life leads everyone to strange places at some point.