Tecmo Koei released a demo of Dynasty Warriors VS to the Nintendo e-Shop today. The demo lets you sample vs mode against the CPU, local play multiplayer mode, and a tutorial mode using four generals.
The demo links up to the final version of the game somewhat. Each time you play the demo, you'll receive points which will unlock bonuses in the final version. 4Gamer has specifics (in Japanese) if you're interested.
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