Behind the ScenesEdit
After the Blur Teaser was released, Insomniac Games decided that the Goo Gun lacked the punch needed to make it feel distinctive and unique, and made efforts to change it. The final result of this change is the Shattergun, which encases enemies in rapidly growing Melanite. Despite the very different appearances, the basic concept is the same; enemies are immobilized by a substance that rapidly increases in size, leaving them open for a quick kill. Despite this, the Shattergun has one advantage over the Goo Gun: it raises enemies above cover.
When the Blur Teaser was released, the Goo Gun was compared by many viewers to a sequence from Pixar's The Incredibles. In the film is a scene where the main character, Mr. Incredible, is captured by way of turrets firing a sticky black substance that rapidly expands, and is able to defeat him via immobolization. While the substance doesn't appear to have any crushing abilities like what the Goo Gun fires, it is sufficiently adhesive to overcome even Mr. Incredible's super strenth.