in the room where the Princess is...where you defend.chests spawn therethere an "Eye" therethere are 4 npc's for buffs also..so in that area / room is where the Summonobot appears
Correct me if I'm wrong. Does it mean that I have to do 16 bosses in order to get the 3 sls?
Alot of time for just 4sls but its better than nothing!
That is correct. You much kill all 16 bosses to acquire 16 signatures. These 16 signatures can then be turned in for the final quest to kill the last boss who drops sls. And I believe it drops 4 sls. This is definitely more profitable and worth the time on 2x as you get more sls as well as more chrono pages from each boss.