I swear I'm not going crazy but this feels like a better developed, and re-skinned, Shinkon Gattai Godannar. It mixes mech-esque mechanics with those of a fighting game on a hyperplane arena.
Some Gundams feel grossly overpowered or underpowered, but thats how it is with these old games.

im going to pretend bandai's insufferable propensity for sucking off gundam seed is why g-witch got done dirty like that. fuck gundam seed bro