Just watched the gameplay videos 2, 3 and 4.
The game looks pretty fun, and it's nice to have the seiyuus used in the anime. Now on another note, it seems you can interrupt the opponent's Metafield activation. Moreover, you can try activating again after being interrupted. Also, you can use your Metafield Super at least twice.
How does Metafield work, anyway?
EDIT: Just took another look at the latest video, it seems like you waste 2 super bars to reactivate Metafield after being interrupted. May be wrong, though.