Micro Black Hole is the third special attack used by Kat in Gravity Rush and Gravity Rush 2. It deals consecutive hits of damage to anything inside its center and sucks smaller things out of existence in Gravity Rush; and it deals damage to things inside its center and sucks things out of existence in Gravity Rush 2. It was received from a Power Tree in the The Mirage during Episode 10: Curiosity Killed the Cat in Gravity Rush, and granted after obtaining Jupiter Style during Episode 12: Black Eagle in Gravity Rush 2.

In Gravity Rush 2, a maxed-out Micro Black Hole transforms into the Ultra Black Hole, a stronger version that restores health for the number and type of enemies defeated.