Hey! I was thinking of linking to this from the main mod's page so people can find it easier. Something like "see here for a Japanese translation", but in Japanese. Maybe you could translate that so I could put it in the description? :)

Of course! "日本語訳は[こちら](https://mods.factorio.com/mod/fun_mode_translation_patch)をご覧ください。" — would that work for you?
By the way, since it’s exported to a locale file, this translation mod can also be used as a base to translate into other languages. However, the game event texts and settings texts can’t be translated unless the Fun Mode Mod itself provides the keys, so if the main mod could handle that, it would greatly improve translation flexibility. I’m not sure if it’ll be of help, but you’re welcome to reuse my mod.( 'ㅂ')b

Maybe I can nudge someone to get the game event and settings texts to be a locale key. Thanks for your hard work!