22 1 2The best place to do this is in battle mode after doing the 50 puzzles.I go over this in my video @ 7:15Showing both comments. Leave a comment. Using battle mode as suggested, after try killing 6 enemies per round, killing the first 3 enemies at the first room should be the fastest way.1) Go out of the room first2) Equip the gun3) Shoot all three enemies4) Click "Select" button, then left to choose Leave game5) Play > Battle mode6) Repeat Step 1)I also turn on achievement tracker and sometimes it won't track simply view the achievement then the tracker should work again.I take around 1 min include loading to kill first 3 enemies.Posted by lfcjohn on 10 May 18 at 15:44 Lfcjohn comment should be the solution. Less running, less godawful inventory.Posted by Chucklestyle on 22 Sep 20 at 07:26 Leave a comment