Geometry Dash has its ninth major upgrade with version 1.9. The 9th of November 2014 was the release date. It added the wave form, two ships, two balls, two UFOs, four new colors, four cubes, and two new levels called Blast Processing and Theory of Everything 2. Users may also choose their own tunes from Newgrounds to use in their levels. With the exception of Stereo Madness, the difficulty ratings for the first nine levels were similarly reduced. https://geometrydashwave.com