Claptrap’s action skill is named VaultHunter.exe, and when he uses it he’s granted one of several random abilities for a short time. If you’re lucky and Claptrap’s programming is working properly, you might get a brief opportunity to use a version of another Vault Hunter’s skill, like becoming a Gunzerker (In Claptrap’s case, Funzerking!) or a Mechromancer (You’ll love your new fire rate!). If you’re less lucky, you might be stuck bouncing up and down uncontrollably or launching a torrent of grenades that will obliterate friend and foe alike.

Beyond that, depending on the skill tree you choose, Claptrap may also gain the ability to cycle between subroutines that increase his efficiency with different types of guns, health regeneration, defense, or other stuff. He also has the opportunity to choose the world’s saddest high five skill, which can increase gun damage, fire rate and health depending on whether or not your teammates leave you hanging.

To delve any deeper into the terrifying mind of Claptrap right now would be to unleash unspeakable horrors upon you, but just know that there will be plenty of strange surprises for you to discover. And, for those who were worried: yes, you’ll be able to climb stairs when you play as Claptrap.