So, if it doesn't play like the other Toshinden games, how does it play? Well, it's an odd one. You can use the analogue stick to run around the arena in all directions, and you only have two normal attack buttons: weak and strong. Rather than special move motions, you have a special and a super, each mapped to a button of their own. I'm not normally a fan of these kinds of super-simplified fighting game controls, though can sometimes work, as in the Senko no Ronde games, or to a lesser extent, the Playstation 90s anime homage festival that is Evil Zone/Eretzvaju. In this case, though, the best thing you can say about the controls is that they're not the worst thing about the game.
The actual worst thing about the game is a decision so stupid and antithetical to the nature of fighting games that I can barely believe they did it: all of the playable characters start out with weak, puny movesets, and you're expected to grind in single player to earn points to buy their moves and combos. To make matters worse, despite this being a game that never had online play, there are only two single player modes: story mode, where you can't pick your character, and surival mode, where you endlessly fight randomly-selected opponents on randomly-selected stages until you lose. It's barely a step above Bomberman Act Zero on X Box 360!
Now, this game isn't completely worthless: I will admit that it looks great, with the character models and textures being particularly appealling. But obviously, that's not enough to make up for how much of an absolute chore it is to play, so obviously, I'm not going to recommend that you bother with it. It's a shame, too, I was really hoping this would be a nice little unsung hero of the Wii's library.