8 4 2Actions Report Solution Open the Jackanism chest on the Tortuga level to get this achievement. Make sure you have 3 shrunken heads then activate Jackanism near the chest.This chest is right ahead of you when the level startsShowing both comments. Leave a comment. How do I get 3 right away? I only found 1.Posted by TheBlackxRanger on 17 Jan 12 at 08:43 Nevermind. Collected three and was able to backtrack.Posted by TheBlackxRanger on 17 Jan 12 at 08:49 Leave a comment