Ace Attorney Investigations: Miles Edgeworth/Trivia

Expy: In GK 1, we have a crime syndicate that does practically every evil activity in the book being investigated by Interpol. Sounds a lot like Shadaloo.
Fan Nickname: Ace Attorney Investigations, before that title was bestowed, was called Perfect Prosecutor by the fandom (though early announcements in Nintendo Power magazine also used that name).
- Gumshoe had been 'Gummy' to the fandom for years beforehand, but Kay makes the nickname canon.
- All the characters introduced in AAI2 have been their own English names by the fandom.
No Export for You: The 2nd game (see 29:45). Immediately after Investigations 2 was released in Japan, the team of developers were disbanded and moved towards different departments to work on new games, so they were never given a chance to localize it. That doesn't mean that it'll be impossible to ever see it localized, but they can't make any promises.
Serendipity Writes the Plot: Edgeworth's flashback to the DL-6 incident in the 4th case is masked heavily and bordered by a "cloudy" filter (in addition to the series standard of merely putting flashbacks in black and white) to hide the fact that it is reused from the original GBA game (and thus has a 240 × 160 resolution with a 15 bit color depth on a 256 x 192 screen with 18 bit color depth) while Investigations is otherwise free of such sprite reuse (contrast Apollo Justice, where such reuse is very blatant when it occurs).
What Could Have Been:
- Concept art for Shi-Long Lang featured him shirtless, with the constellation of Orion scarred on his chest. Seems the director objected to the toplessness, even after a feather boa was added to cover the nipples.
- Originally the concept of the game involved Ema Skye as the protagonist and the game would focus on forensics tactics.
- Concept art sketches show that Quercus Alba's design went through a phase with him looking much more like a gnarly old tree.