With 2J you mean the jumping spike attack or simply Down + Attack? Currently there is a small issue where, if a direction and an input button are pressed simultaneously, the game might "eat" the direction - but it's fairly limited and *might* be the cause of the air attack input issue. Try keeping Down pressed before pushing the attack button. I have seen it happening mostly on j.2A, but I'm investigating it. Other than that, which other moves are difficult? I didn't think I found issues with the special motions, but any feedback is welcome!