Board Thread:Questions and Answers/@comment-65.49.68.195-20160526141436/@comment-28533556-20160618103926

167.60.37.127 wrote: To get the boss weapon AND the achievement of defeating them in eclipse mode first you must play the interlude, for lynx, once you beat him on interlude you can fight him in eclipse right away and get his weapon as well as the eclipse achievement, same for the others. exactly