Hey everyone, I see that the old thread has still been floating on the forum for the past 3 years with updates from myself and a forum moderator. Now that we are nearing the end of the Xbox 360's run, I wanted to make a new thread with an updated, comprehensive list of what was out there on the retail disc side of things only for people wanting to round out their collections. I have collected a bunch of them myself, and can confirm region free compatibility with Region 1 consoles on the titles listed as such. If not tagged Region Free, then that title will only work with a console from that region. Here is the updated list:
North American Version Shooters:
-Akai Katana
-DeathSmiles
-Raiden Fighters Aces
-Raiden IV
-Otomedius (2): Excellent
European Version Shooters:
-Akai Katana
-DeathSmiles
-Dodonpachi (4): Resurrection Deluxe Edition (Same game as DaiFukkatsu) (Region Free)
Japanese Version Shooters:
-Akai Katana Shin
-Bullet Soul (Region Free)
-Caladrius
-DeathSmiles
-DeathSmiles II X
-Dodonpachi (3): DaiOuJou - Black Label Extra
-Dodonpachi (4): DaiFukkatsu Version 1.5
-Dodonpachi (4): DaiFukkatsu - Black Label
-Dodonpachi (5): SaiDaiOuJou (Region Free)
-Eschatos (Region Free)
-Ginga Force (Region Free)
-EspGaluda II - Black Label (Region Free)
-Ketsui: Kizuna Jigoku Tachi Extra
-Mamoru-Kun
-Muchi Muchi Pork! / (Ibara II): Pink Sweets (Region Free)
-Mushihimesama HD
-Mushihimesama (2): Futari Version 1.5 (Region Free)
-Otomedius: Gorgeous
-Otomedius (2): Excellent
-Radirgy NOA Massive
-Raiden Fighters Aces
-Raiden IV
-Shikigami No Shiro III
-Shooting 200X (TriZeal/ExZeal)
-Shooting 10th Anniversary (XIIZeal/DeltaZeal) (Region Free)
-Under Defeat HD
*One more for the complete collector: The Japanese title "Instant Brain" is an investigation style game where you choose text options to figure out a mystery. I am mentioning it here because upon completion of the game, you unlock a fully playable version Dodonpachi (2) with its own achievements, and it also has a Kinect Mode as an additional option.