Ok so this is basically just Any% NMG, but instead of getting the "lame" ending that's gotten by only saving Elsa, you have to get the "true" ending where you save both Elsa and Barnard and also expel Baba Yaga.

Also, the only reason I'm posting this on the EGA version's forum is because this is the version I play more, so this can obviously also be done for the VGA version as well.