Their appearance is obviously identical to Hush's first form during its second phase.
Blue Gapers behave like normal Gapers, and especially chases after Isaac. They are spawned by Hush in large numbers, usually at least 10-14 at once.
- Blue Gapers are one of the Gaper types not to spawn into headless variants upon death. Three others being Cyclopia, Null, and Greed Gaper.