team freestyle games

On a couple of occasions me and teammates have been been criticised for playing simultaneously in a freestyle team game. We have been accused of cheating.
Can someone tell me if this against the rules or if their criticism is just sour grapes? I was under the impression that this is what differentiates a freestype game from a sequential game, where players must go one after another. Otherwise, what is the difference.
Can someone tell me if this against the rules or if their criticism is just sour grapes? I was under the impression that this is what differentiates a freestype game from a sequential game, where players must go one after another. Otherwise, what is the difference.