Board Thread:Questions and Answers/@comment-118.211.8.204-20150302141811/@comment-50.11.171.44-20150502075622

To answer that question about Kirito "coming back to life"could it have been Klein. We never see him used the crystal in episode 3. After all Heathcliff, allowed Asuna to heal her paralysis  maybe he used it when he dead.

Just my small .1% theory