Wow, that sounds great! I used to play on DWANGO a lot as an early teen (13 or 14, back in 1994-95). Somehow I convinced the DWANGO staff to make me a moderator on the San Francisco servers... it came with responsibility to keep chat relatively civil but it also meant free Doom 2 on their service which was incredible at the time.

I ended up talking to Romero directly back then because he would make random (?) visits to various DWANGO servers. I remember him specifically being generous with his time chatting with me and others. So if you ever see this Romero, thank you!