Board Thread:Questions and Answers/@comment-26138409-20160306224346/@comment-35248429-20200316063350

68.13.113.23 wrote: it's not that they can't feel pain, the game has a 'pain buffer' that reduces the neural stimulus of pain beyond a certian threshold by a set percentage. It's more likely the hot pot and the stop to the foot don't cross the line of being 'too painfull' to reduce. In addition durring combat they have passive skills and abilities to reduce and heal damage instantly, or near instantly, most likely reducing the pain felt in combat even more. This would account for the disparity in their reactions to life or death combat damage, and house hold accedent or the occasional crushed toes.

This entire post is incorrect. They do not feel pain in any of the SEED games in the main series. The only time pain is mentioned in a SEED game is in Alternative, which is contrary to how being hit is described in the main series in GGO.

In addition to Grimnas' post, the anime also greatly embellishes their reaction to getting hit.