Bubble, Bubble, Soil and Rubble is a challenge in Subconscious worth 5 Badass points. To complete this challenge, the Vault Hunter must shoot the mask off of a gigantic Handsome Jack Bobblehead.


The Jack Bobblehead is encountered during the storyline mission END OF LINE, where the Vault Hunters must defeat Despair and Self-Loathing, to turn them back into Hope and Self Esteem. The mask is attached at three points: one on the chin, and two right above Jack's eyebrows. Simply shooting each connection point with any weapon will cause the mask to fall off and complete the challenge.



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