Defictionalization: Like with the previous game, a watch shaped like the game's bracelet was made available as a pre-order bonus (lethal injection needles and futuristic drugs not included).
They're also a lot smaller and made of plastic, as opposed to the ones in the game which seem to be fairly large and look to be made of metal, with screens colored in a single color (Mine is yellow), rather than changing color display on a black screen, but still.
Initially, Uchikoshi wanted an older protagonist for the sequel. However, the higher-ups wouldn't allow it because Japanese gamers believed that old men couldn't be awesome. He got around this by making Sigma discover that he was in his 67-year old body as a major late-game plot twist. He also had Junpei from Nine Hours, Nine Persons, Nine Doors show up as an old man, and no less badass.
No Dub for You: In the European version. Seeing that 999 was never officially released in Europe, localizing this game was seen as too risky to pay extra for dual audionote They only got the Japanese dub. So in the end, it could have been worse.
No Export for You: The promotional watches that were for preorders of VLR were available in America only. Good news is, they decided to make plenty more after the game's release. The bad news is, they are only available during conventions and only if Aksys shows up.