Hey everyone, I’m not sure if this has been done already, but I managed to switch my Splatoon's language from American English to Japanese through cafiine and the leaked 5.5.1 kernel exploit. If cafiine language switching is considered as speedrun-legal, then everyone can take advantage of the faster Japanese text without having to drop $350 on a new Wii U.

For more details, ping me at the discord (@OatmealDome). If everyone considers this as OK, then I'll hopefully be able to edit this post to add a link to the guide.