- Hyperdimension Neptunia mk2, Hyperdimension Neptunia Victory, and Hyperdevotion Noire: Goddess Black Heart. It allows the player to take materials and synthesize it into an equipment or consumable. Additionally, a Product Proposal must be in possession in order to be able to synthesize materials into a specific item. Some items require a partner with a specific Lily Rank in order to synthesize that specific item.
Item Synthesis is a gameplay mechanic present in
- In Hyperdimension Neptunia Victory, it is called "Item Development", but is basically the same as mk2's Item Synthesis.
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