AI: The Somnium Files

~ V1.00 (12.22 GB) on disc

Completely playable offline with no download required.
Utilized default settings except for Japanese audio with English subtitles & opting out of skipping unseen text.
All art gallery, file logs & conclusions, including the "Resolution Route / True" Ending, were obtained.
100% platinum trophy status achieved.

-- Very, very minor instances of performance issues, hardly lasting a second or two each, can occur at random throughout the experience.
Brief moments of framerate lag can happen whenever dialogue textboxes move on the screen, during one of the many transitional car drive-by cutscenes, as the "AI Sight" submenu appears on-screen to show a flashback / model animation, etc.
Also, rare instant flashes of dark shading can appear over a character model / environmental effect as dialogue boxes or the "AI Sight" sub-menu moves on-or-off screen. For the location effects, the lighting peculiarity (ex. bloom at the warehouse locale) can manifest in the form of a grid-like pattern & the appearance of the oddity might be dependent on where the player is facing the camera during a particular action.

-- Uncommon problems with the English subtitles, including awkward punctuation, spelling errors or misplaced dialogue. One specific example for the latter, albeit inconsequential, takes place during an investigation area at Bloom Park for the "Purple" / Iris flowchart story route. When choosing to examine Aiba in her human form right at the start, a piece of text plays out saying she's still sitting in the passenger seat of Date's vehicle from the previous scene even though the character is visibly "standing" on the merry-go-round.

-- Notable bug with potential spoiler: Attempting to save during the late-game dream / puzzle sequence for "Psychin' in the Refrain" causes a save data corruption error (CE-33105-2). As a result, it's highly recommended to avoid logging your progress until that section has been completed. If you happen to encounter damaged data, you can attempt to salvage it using the 'Safe Mode' boot menu on the console to access the 'Rebuild Database' option. Nothing appeared lost during this playthrough.

-- Major spoilers: Several strange moments, notably in interrogation room scenes, where lip sync doesn't appear to have been properly matched between on-screen & character profile models during select spoken dialogue. During the story route where the player questions Hitomi, a flashback plays out in "AI Sight" where Date recalls she mentions the loss of a former best friend. Instead of the flashback model talking, the present-day / profile model says the dialogue. A weird stretch of missing lip sync happens when questioning the real culprit near the end-game. While the profile model would mouth the audio, the present-day version would simply gesture with no speaking animation. Oddly enough, it returned to normal once the player chooses the option for the culprit to reveal their true identity.

-- Localization error with ending spoiler: When using Japanese audio during the final 'end credits' cut-scene as part of the "Resolution / True Ending" route, a localization bug occurs where developer Spike Chunsoft seems to erroneously link the active voice acting to the current system language setting regardless of selections in the game options menu. As a result, the ensemble performance of "Invincible Rainbow Arrow" will play out in English by default. In order to see the Japanese version of the finale, the player will need to change their console language setting over to Japanese & navigate back through the respective console / in-game menus. Once back in the game, use the unlockable fourth menu option ("Dance") & press the 'Options' button on the controller to watch the finale performance in Japanese audio at the cost of English subtitles. One piece of insignificant spoken chatter amongst the characters before the fade-to-black doesn't feature any text support across both audio tracks.