Turn-based or hybrid?

[A Black Falcon]

Tales of Symphonia... haven't played it? It's got side-scrolling combat. You run on a plane, attack/defend with buttons, use special moves with commands (B, B+up, B+down, C-up, etc -- six of them)... and can set any of the four party members to be human-controlled. It's a little awkward because the camera always focuses on player one, but either the other players just do the best they can or target the same person player one is attacking.

In the field, yes, it's one player only, as far as I know.