You could be like the protagonist of Final Fantasy XIII-2 and travel through time to a future where Square Enix's next console RPG is already released. Or, you could just wait a week for the free downloadable demo to release.
The Final Fantasy XIII-2 demo will be available on PlayStation Network on January 10th, and on Xbox Live Marketplace on January 11th. No word on what the demo will include, but you should expect spiky hair, giant swords, and a dramatic cutscene or two.
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Final Fantasy XIII-2 will be available on January 31st.