Back Hopping (Accelerated Back Hopping (ABH)) is the main method of movement for speedrunning on OrangeBox Engine-based games. After ABHing was patched in a Gmod update due to it being a glitch in the OrangeBox Engine, It was reimplemented back in to NGS via the Backhopping Unfix addon on the Steam workshop.

1. Jump forward,
2. Turn around while you're in the air,
3. Right when you land, jump again and hold A or D.

Tips:

• Don’t hold the forward or backward keys (usually W or S) while doing this.
• It's much easier if you bind jump to your mouse wheel. (bind mwheelup +jump; bind mwheeldown +jump; bind space +jump)

Still Stuck?

Accelerated Forward Hopping (AFH)