The Wall Climb was the top half of a room in Olmec's Temple. Occupying the only room space to never feature a Temple Guard, the ideal objective was to use the holes along the back wall to climb to the doors on the other side. However, this was never performed, as players (correctly) felt it was more time-efficient to just jump down.
The Wall Climb went through a slight change in its fifteen-episode run. Ropes were added after the first two episodes to ease players up the wall; ironically, these ropes seemed to impede progress more often than not, such as for Tia Thomas in The Golden Cricket Cage of Khan.