There's another samurai style hack and slash game out for the PSP, I couldn't read the name, but my girlfriend plays it constantly. At first I thought it was this, but the release date here says March, so I guess it can't be. I've never seen anyone use a portable gaming system for as long as she played whatever game that was. She brought it back from Japan, and I guess you can choose from all these samurai, and level each up, and there's a grid that strategically lays out the battlefield, with each tile representing another possible battle.
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