Theory of Everything 2
Theory of Everything 2 is the eighteenth level in Geometry Dash. It will be released in the 1.9 update along with Blast Processing. The level is presumed to be a Demon level, but this has not yet been confirmed.
Introduction
On October 10, 2014, Robert Topala uploaded a second sneak peek, confirming the existence of Theory of Everything 2. It also disproved that the second level in the update would be Eternity. Its appearance will mark the first "v2" soundtrack in Geometry Dash. Topala played the sneak peek using his computer, showing a computer cursor, indicating at the release of the Steam version of the game.
Description
Theory of Everything 2 will introduce a new gradient pattern background, with a tile-like background in the first ship segment. It also includes the three-dimensional blocks shown in earlier preview images. The level starts off with several sets of jump rings. The level also shows blocks them are same but them have different player color. That means as next update could have a new "Edit object" for every block that allows to change that block's color.
Also, the level officially introduces laser like decorations .