When playing a new game-slot or character, it is possible to unlock the 'CLIMBER' trait very early.
To achieve this, just keep jumping or rolling over the first road-barrier which appears
after the character has jumped down from the building-floor and has warded-off the two unwelcoming Root.
You'd have to do this at least 50 times.
If you ignore the first barrier, there are 3 further opportunities along the way to the Ward.
Sandsack-piles also do the job.
If you ignore all opportunities during the intro, the only way to achieve the trait eary would be
in the EARTH-world, shortly after leaving the Founder's Hideout.
It's a good thing to have at the very beginning of the game and you'll not have to bother about it
whilst entering the main-campaign.
Cheers*****