February 23 - Vandal Hearts (PS1)
March 11 - Transformers: Devastation (PS4)
March 15 - Super Mario Odyssey (Switch) - primary story campaign, not all the extra content
March 20 - Axiom Verge (Switch) - 2nd play through of the game, 93% map completion, 66% item completion
April 9 - Raiden V: Director's Cut (PS4) - this was a "credit feed" win, not a 1CC, and I got the "bad" ending.
May 16 - R-Type (Game Boy) - not a 1CC, but I did both loops on 2 credits, which wasn't too bad.
May 26 - DonPachi (Saturn) - totally a credit feed victory, but I did do both loops
May 27 - Bayonetta (Switch)
June 3 - Azure Striker Gunvolt (Switch)
July 16 - Gradius (PSP) - 1st loop only, 1CC
July 21 - DOOM (Switch)
September 12 - Fate/Extella: The Umbral Star (Switch)
September 5 - Sonic Forces (Switch) - main story campaign only, not the bonus missions. Fun game!
October 20 - Monster Party (NES)
October 21 - Sonic Mania (Playing as Sonic, no Chaos Emeralds)
October 22 - 1942 (NES) - Full 1CC
November 4 - Steel Empire (Genesis) 1CC x 2 (1 with optimal craft selection per stage, 1 with only the dirigible on all stages)
November 14 - Steel Empire (PC/Steam) 1CC
November 20 - God of War: Ghost of Sparta (PSP)
November 20 - BioShock (Xbox 360)
November 24 - Mega Man 8 (Switch)
December 1 - Syphon Filter (PlayStation)
December 21 - Ketsui (PS4), 1-ALL "Deathtiny" mode
December 27 - Syphon Filter 2 (PlayStation)