CJ KO'ed by wall in GTASA Modding Posted January 8, 2011 · Report reply So, does this keep CJ from running even if he's at the wall? It does a solid obstacle check when he is in his run animation. So if you hold ALT (walk) as you move toward a wall it won't do the KO animation. But even if he does get hit, he just stands right back up so at that point you could jump the wall. Also since fences are not walls it does not react on them or objects such as cars. The solid check runs between 10 and 50 cm from the front of his body and could be adjusted. You should have no trouble running along walls or on top of them, just at them.