Mesozoic Era in story puzzle mode:
Successfully complete the Paleozoic Era in puzzle mode.

Cenozoic Era in story puzzle mode:
Successfully complete the Mesozoic Era in story puzzle mode.

Ancient Civilization in story puzzle mode:
Successfully complete the Cenozoic Era in story puzzle mode.

Story puzzle and vs. puzzle modes:
Successfully complete all lessons in training mode.

Hidden Future:
Finish with a "Master" rank in all four stages to unlock the Hidden Future in story puzzle mode.

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