Virtual On Oratorio Tangram M.S.B.S. 5.66 was released today on Xbox LIVE Arcade and the rumours of a possible problem (bar the pad controls) have turned out to be true. The functionality for initiating a quick step in close combat range is very difficult to use now due to very stringent timing. Originally, any kind of lateral move in close combat range combined with a turbo button press would produce a quick step. Using this with a weapon trigger would allow the player to use circle slashes, a basic and fundamental part of how close combat worked in the game. Now, the timing for a lateral move has to be almost exactly in sync with the turbo button press. So just pulling off a quick step is much more difficult, rendering the additional aspect of circle slashes unwieldy.
It's worth clarifying that you can pull of quick steps if you get the timing just right but it's made a previously basic feature much more exclusive (something that 5.66 in the arcades went to great lengths to make more accessible over 5.45 on the Dreamcast)