Hatsune Miku Project Diva Future Tone DX (PS4) - http://miku.sega.jp/FT/
includes
* Hatsune Miku: Project Diva - Future Tone - http://www.completionator.com/Game/Details/30651
* Hatsune Miku: Project Diva - Future Tone - Colorful Tone - http://www.completionator.com/Game/Details/30652
* Hatsune Miku: Project Diva - Future Tone - Future Sound - http://www.completionator.com/Game/Details/30653
* Hatsune Miku: Project Diva - Future Tone - 1st Encore Pack - (DLC, currently not in Completionator DB)
* Hatsune Miku: Project Diva - Future Tone - 2nd Encore Pack - (DLC, currently not in Completionator DB)
* Hatsune Miku: Project Diva - Future Tone - 3rd Encore Pack - (DLC, currently not in Completionator DB)
* Hatsune Miku: Project Diva - Future Tone - Extra Encore Pack - (DLC, currently not in Completionator DB)

They Are Billions http://store.steampowered.com/app/644930/They_Are_Billions/

RBI Baseball 17 needs an add.

Though 'Combat Wings: Battle of Britain' is already included, I'm missing the base game:

Combat Wings: https://www.gamersgate.com/DD-CW/combat-wings

as well as the WWI arcade flying sims:

Wings of Honour: https://www.gamersgate.com/DD-WOH/wings-of-honour

and

Wings of Honour - Battles of the Red Baron: https://www.gamersgate.com/DD-WOHBOTRB/wings-of-honour-battles-of-the-red-baron

finally another oldie on Gamersgate:

The Hell in Vietnam https://www.gamersgate.com/DD-THIV/the-hell-in-vietnam

Thanks in advance!

Dragon Quest Monster Joker 3 : https://www.play-asia.com/dragon-quest-monsters-joker-3/13/70901l

@everyone - Those have all been added!

Please add Omega Strike:

http://store.steampowered.com/app/680340/Omega_Strike/

Snipperclips Plus - Cut it out, together!

Tokyo Xanadu eX+

https://store.playstation.com/en-us/product/UP1024-CUSA06978_00-TOKYOXANADUPS4SP

Please add Franchise Hockey Manager 4
http://store.steampowered.com/app/595420/Franchise_Hockey_Manager_4/

Cornflakestein - http://store.steampowered.com/app/728890/Cornflakestein/
Super Dungeon Boy - http://store.steampowered.com/app/718180/Super_Dungeon_Boy/
Where Are My Friends - http://store.steampowered.com/app/721350/Where_Are_My_Friends/
Yissa Deep Realms - http://store.steampowered.com/app/750960/Yissa_Deep_Realms/
Scrollonoid - http://store.steampowered.com/app/625160/Scrollonoid/
Squarism - http://store.steampowered.com/app/745030/Squarism/
Powargrid - http://store.steampowered.com/app/453130/Powargrid/
Rocket Wars - http://store.steampowered.com/app/627670/Rocket_Wars/
The Labyrinth - http://store.steampowered.com/app/652050/The_Labyrinth/
New World: The Tupis - http://store.steampowered.com/app/723880/New_World_The_Tupis/
You Shall Not Jump - http://store.steampowered.com/app/649000/You_Shall_Not_Jump_PC_Master_Race_Edition/

Finding Paradise - http://store.steampowered.com/app/337340/Finding_Paradise/

In Your Face | Gameboy | Jaleco | 1990

https://www.gamefaqs.com/gameboy/585751-in-your-face

Umanari 1 Furlong Gekijou - https://segaretro.org/Umanari_1_Furlong_Gekijou

Playstation VR Demo Disc

All Xbox 360 (Xbox Live Arcade):

Commanders: Attack of the Genos (http://marketplace.xbox.com/en-ca/Product/Commanders-Attack/66acd000-77fe-1000-9115-d80258410821)
Boogie Bunnies (https://marketplace.xbox.com/en-CA/Product/Boogie-Bunnies/66acd000-77fe-1000-9115-d802584108d3)
Doodle Jump for Kinect (http://marketplace.xbox.com/en-CA/Product/Doodle-Jump-for-Kinect/66acd000-77fe-1000-9115-d802584113f6)
Invincible Tiger: The Legend of Han Tao (https://en.wikipedia.org/wiki/Invincible_Tiger:_The_Legend_of_Han_Tao)
Lazy Raiders (https://marketplace.xbox.com/en-us/Product/Lazy-Raiders/66acd000-77fe-1000-9115-d8025841095f)
Polar Panic (http://www.mobygames.com/game/xbox360/polar-panic)
Prince of Persia Classic (https://marketplace.xbox.com/en-us/Product/Prince-of-Persia/66acd000-77fe-1000-9115-d80258410865)
Shred Nebula (http://marketplace.xbox.com/en-us/Product/Shred-Nebula/66acd000-77fe-1000-9115-d80258410879)

Seiken Densetsu Collection - https://www.gamefaqs.com/switch/207500-seiken-densetsu-collection

Xbox 360

Capcom Digital Collection - With further breakdown this includes these games: Super Street Fighter II Turbo HD Remix, Final Fight: Double Impact, Super Puzzle Fighter II Turbo HD Remix, 1942: Joint Strike, Bionic Commando Rearmed 2, Flock!, Rocketmen: Axis of Evil, Wolf of the Battlefield: Commando 3

PopCap Arcade Volume 1 - Includes these games: AstroPop, Bejeweled 2, Feeding Frenzy, Zuma

PopCap Arcade Volume 2 - Includes these games: Feeding Frenzy 2, Heavy Weapon, Peggle

Xbox Live Arcade Game Pack - Includes these games: Bomberman Live, Geometry Wars 2, Lumines Live!

Blade & Soul http://www.bladeandsoul.com/en/?_ga=2.44367463.253690510.1515230831-2069839686.1515230831

Finally added my PS2 collection and have a couple of missing items:

Monster Attack - http://www.mobygames.com/game/monster-attack
Global Defence Force / Earth Defense Force 2 - https://en.wikipedia.org/wiki/Global_Defence_Force
Global Defence Force Tactics - https://en.wikipedia.org/wiki/Global_Defence_Force_Tactics

(And "Singstar Svenska Hits" which, eh., you might as well leave out, why do I even own this.)

Thanks!

A Plot Story - http://store.steampowered.com/app/699160/A_Plot_Story/
(what kind of name is that...?)

No rush, just a bundle game that seems to be missing. Thanks!

Gadget & The Gadgetinis (PS2, PC) - https://en.wikipedia.org/wiki/Gadget%26_the_Gadgetinis_(video_game)

Luminous Arc 3
https://www.gamefaqs.com/ds/971291-luminous-arc-3-eyes

Digimon Story: Lost Evolution
https://www.gamefaqs.com/ds/980253-digimon-story-lost-evolution

Virtue's Last Reward for 3DS

@everyone - I think I've added everything except the compilations, which will take a me a little longer. I had a few questions / notes:

@the8thsign - I don't suppose you have a link to a definitive list of what's included in this, do you? I found some conflicting reports and I'm not familiar with the series or this compilation. Also, are any of these remakes that would warrant a separate entry here (like the upcoming Secret of Mana) or are they the original versions?

@patcrazystar64 - For PopCap Volume 1, do you know if the Zuma it includes is simply "Zuma" or is it Zuma Deluxe? I couldn't find an Xbox Live release for Zuma, but I know Zuma Deluxe is on there. I know the cover shows "Zuma", but trying to confirm one way or another.

@jkersey450 - That one was already on the site, but you've actually uncovered a bug where if you search for "virtue's" it will not return properly! I've added it to my task list, but in the mean time, you should be able to just search for "last reward" to find it.