Next game is “Alcon (Taito, 1986)”.
First I couldn’t even find the bugger, but after a bit of searching it transpires that this is a version of the infamous “Slapfight”. And indeed there she was, as a clone under Slapfight. Doesn’t work though – it gets stuck on the bios style screen. Don’t panic though, Slapfight itself is in the book – albeit at the other end of the alphabet so don’t hold your breath for that one just yet..