7 6 3Actions This achievement is Story-Based and therefore unmissable.You'll unlock this when you complete the story mission where you fight Butters/Professor Chaos at the Storage Facility.It should unlock after you complete the boss fight.Showing all 3 comments. Leave a comment. It actually unlocks after all the cut scenes, and on the next day. Detailed strategies on how to beat the boss (which is rather lengthy, and comes in three phases) would be helpful.Posted by neeker75 on 04 Nov 17 at 10:18 Helps to have Cartman's ultimate queued up for the first turn of round 2Posted by bryan dot exe on 05 Apr 20 at 02:45 I genuinely don’t know how I didn’t get this. I played it two years ago and I remember the boss fight but I never got the achievementPosted by tylercynical on 13 Sep 20 at 09:24 Leave a comment