Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 6878 – Back C October 4, 2019October 25, 2021 Master Builder 2936 Views From: 6878: Sub Orbital GuardianName: Sub Zero Hero 1Instructions: View PDF | Download .io File ContributionsName, PDF, and .io file submitted on May 17, 2021 by: IceAge2002