From Game Developer Research Institute
It's been confirmed that Dead Moon was being developed at Zap, but did a group (Studio Ducks?) break off and take over the project? Twinkle Tale seems to be by the same group.
- Twinkle Tale (JP Publisher: Wonder Amusement Studio)
- Dead Moon: Gessekai no Akumu / Dead Moon (JP Publisher: T.S.S.; US Publisher: NEC)