Non-standard chart with scratchsnipes (taps after scratches) and hold-taps, as well as densely packed beats that will most likely force you to use the "Alt-Beat" button.
Native difficulty is EX. XD is a rather violently souped up version that I pretty much certainly can't even play yet due to its complexity.
As such, XD is subject to change as soon as I eventually either get pointers towards things that need to be changed or I just get to the point I can play the chart myself.