Here is the full list of all 9 Last Call BBS achievements.
Beat the final boss of HACK*MATCH.
Solve every puzzle in X'BPGH: The Forbidden Path.
Solve every puzzle in 20th Century Food Court.
Assemble every model in Steed Force Hobby Studio.
Design every circuit in ChipWizard™ Professional.
Win a game of Kabufuda Solitaire on Expert difficulty.
Solve every puzzle in Dungeons & Diagrams.
Find the hidden credits sequence.
Win 10 games of Sawayama Solitaire.