It seems the Asian/ Hong Kong edition was released in Taiwan with an age rating sticker on the front and a sticker from the distributor on the back, in addition to the two stickers about game and manual languages on the front.
It came with a dual-sided insert in Japanese on one side and English on the other. Both sides have been found facing outwards inside sealed cases. Two slightly different AtGames stickers have been found on the back.
Pre-ordered copies came with a Micro-USB cable.
1. Front of Japanese side with stickers
2. Back of Japanese side with AtGames sticker
3. Back of Japanese side with variant AtGames sticker
4. Front of English side
Thanks to Ruten members fu_yu_wei363180 (images 1-2) and cuteyvonne1688 (images 3-4).