With SGL (Storyboard Generation Language), you're able to create very
complex storyboards.

SGL-Editor Download: http://www.mediafire.com/download.php?30uufd6p8mg0m35
SGL-Editor Sourcecode: https://github.com/MoonShade/sgl-Editor
SGL-Wiki: https://github.com/MoonShade/sgl-Editor/wiki

Map by happy30: http://osu.ppy.sh/b/106358