In 1988 Konami published a brilliant puzzle/action game called King's Valley II on the MSX1 and MSX2 machines. It was pretty unique in that it came with a nifty little level editor that allowed players to create and share custom levels. A level was saved in a binary format with the .ELG extension (short for El Giza).
dan's next contribution to the 2020 christmas quiz is this King's Valley II level for the legendary Konami game.
You can find sdsnatcher's enhancement patch here to upcycle your cartridge or Games Collection disk.

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KValleyII-XMAS Quiz Level (2020) (Dan).dsk360 KB3343 days 13 hours ago