The run and jump is done from the middle peak in the floor. Not the one closest to the bottom right door. Run from the left edge to just right of the peak, jump and wall jump on the overhang. It may be worthwhile to kill the Powamps and crabs first.

Requires:

"Gravity"
"HiJump"
"canTrickyDashJump"
"canWalljump"

Clears obstacles: A, B