Persephone By: Plug In Digital / Momo-pi I was cautiously optimistic about trying the new mobile puzzler simply titled Persephone, named after the Greek queen of the Underworld. I loved the idea of killing yourself as part of the puzzle, and the artwork looked bright and polished. But not knowing anything about the developer, I was worried it might be too gimmicky and skimp on the actual mechanics. However, after just a…