You'll be able to play parts of AR Combat Digi Q: Friend Tank Battalion for free.

The wordy AR Combat Digi Q: Friend Tank Battalion, will release for free on the PlayStation Store, providing players with five stages of the augmented reality battle tank sim.

Players will then be able to stump up ¥800 ($10) to pick up a further 25 stages. Savvy gamers that splash out in January will get the extra content for a lowly ¥500 ($6). An additional two packs boasting five stages will also be made available for ¥200 a piece ($2).

Seems like a decent model. Don't expect the game to make its way outside of Japan though.

[source andriasang.com]