5 0 5Actions Report Solution Defeat Cragclaw, the first real boss, while in co-op mode. After getting the grappling hook follow the marker for the "Kill it with Fire" mission, climb up the plateau and then keep going toward the tower over the the lava to the boss. Shoot the small bulbs that sprout from it's head while avoiding it's high and low wave attacks. And moving from platform to platform when hot slime is shot onto the one you are on. After destroying the 3/3/5 bulbs the boss is defeated and achievement is unlocked.If you've passed this point in the game it's not too far from the beginning of the game especially if you know what you're doing. On a new profile my partner and I were able to reach and defeat the boss within 40 minutes. I do recommend picking up as much goo upgrades that you can quickly snag before attempting the boss.Guide not helping? View 1 more guide for this achievement.Showing most recent comments. View all comments. Still hasn't synced for me. Gonna try killing the boss in co op again and see what happens...Posted by SouP x360a on 21 Mar 21 at 08:46 It finally synced 😁 i didn't have to do anythingPosted by SouP x360a on 22 Mar 21 at 06:44 Same here. I ended up beating the boss again in coop to try to pop it, but it apparently synced sometime later!Posted by webdoggy on 22 Mar 21 at 12:30 Leave a comment