Total aside, but I recently got a game called Marine Philt (weird name) for the FM Towns. Where Dead of the Brain is Nightmare Collection I, Marine Philt is Nightmare Collection II - so I guess it's like a... not a sequel, but a spiritual successor? That's fun!
You can see some stuff about it here:
https://www.mobygames.com/game/nightmare-collection-ii-marine-philt
You can see some stuff about it here:
https://www.mobygames.com/game/nightmare-collection-ii-marine-philt