Compile Heart updated the official website for their spooky-dungeon RPG Kamigokuto: Mary Skelter, coming to PlayStation Vita on October 13 in Japan.
The update details how players will be able to upgrade their equipment in the game. This can be done by defeating enemies and obtaining “Blood Crystals”.
These items have four types, conveniently named: A, B, AB, and O also included are the positive and negative of each. Using one of the 12 different blood crystals on your weapons will boost its stats. However, there will be times when the weapons require a certain blood crystal.
You can check out the screen shots below: