Enable Emoji Icons Outside of Japan
As you should know that japanese iPhone customers got 1 more function that the rest of the world does not have, the Emoji Icons. You can see from an Apple discussion thread, customers outside of Japan are pretty confused as to why Apple would leave the Emoji icons out of the update for everyone else.
Anyway a 19 year old software developer Steven Troughton-Smith explains how to enable Emoji icons on a iPhone set outside Japan.
You need to edit the file /User/Library/Preferences/com.apple.Preferences.plist on the device -> whether you use a jailbreak to achieve this or merely some iTunes backup editor is up to you.
Add the following boolean key as ‘true’: KeyboardEmojiEverywhere
Then merely go to the Keyboards section of the Settings app, hit Japanese, and turn on Emoji. Will work for any text field/view in the OS, including on websites, AND including the titles of items on SpringBoard (e.g. if you save a bookmark to the home screen).