I knoticed that when you are in a 2 vs 2 tag match, and there are people watching you can control the 2nd player of the right team. You fight over control, but when the person isnt pushing any buttons you can then do the character's moves.

That already happened to me before.

yes..it's sorta like a bug..i recommend kicking the observers before starting a game...*cough* vash don't post if you don't have a clue what your saying

It's a bug,it happened to me before.I just don't do 2vs2 that much anymore due to this.