2 1 1Actions Report Solution You will earn this after completing Metallic Madness stage 3. It will pop just after you unlock the achievement for beating Eggman's final machine. Hope this helped if you were unsure.Showing only comment. Leave a comment. I tried doing that on Sonic CD Mobile for Android & IOS. I use someone else's complete or used save file & the achievement still hasn't unlocked for me. When unlocking this, do I have to collect Time Stones and/or Destroy all the robot transporters & Metal Sonic Holograms in the past?Posted by DDT SDT on 23 Apr 22 at 16:00 Leave a comment