Infinite Loop is an optional mission available in Research and Development.

“The hardest decision a vault hunter ever makes... which insane AI personality to shut down in the name of glory and shiny things?”



  • Investigate computer problem
  • Find restraining bolt
  • Pick up restraining bolt
  • Bring back restraining bolt
  • Override CLAP-9000


The Vault Hunters must travel to Automated Weapons Production section of the Research and Development where DAN-TRP and CLAP-9000 are found arguing which weapon should be produced next. Jack requests the Vault Hunters to pick up the restraining bolt from a console located in the far northern corner of the Robotics Durability and Adaptability Research section. Once the restraining bolt is acquired, a choice has to be made:

  • putting the restraining bolt on DAN-TRP means the mission is turned in to CLAP-9000 for which the Snowball grenade is rewarded.
  • putting the restraining bolt on CLAP-9000 means the mission is turned in to DAN-TRP for which the Mining Laser laser is rewarded.


"No one stands between a Vault Hunter and their loot."

Turn In: CLAP-9000 or DAN-TRP


  • Restraining Bolt - "For restraining CL4P-TP units. Not as kinky as it sounds."
  • Although CLAP-9000 is Hyperion robot working in Hyperion R&D, and is designer of the Snowball, grenade MOD itself is made by Tediore, not by Hyperion.


  • The names of the two Claptrap units in this side mission (CLAP-9000 and DAN-TRP) as well as their behaviors and speech mannerisms reference two famous artificial intelligences: HAL-9000 from the movie 2001: A Space Odysee and SHODAN from the System Shock video games.

See also