In the game's first level the Point of Arrival, the ambience that plays at the very start of the level features the sounds of birds singing and chirping. Listening closer however will reveal that they are singing part of the melody to the Grasslands Theme.

The New World script seen throughout the game is a cipher for the Latin alphabet. While this is most visible with the subtitles for "Welcome to the New World", which are provided in both scripts, all other instances are just as easily translatable, producing coherent English-language messages.

In an interview for Nintendo's "Ask the Developers" column, series director Shinya Kumazaki and associate producer Kei Ninomiya revealed that they deliberately designed and utilized the New World script in a way that would allow players to translate it themselves, with Kumazaki describing it as a way to make the game more immersive for curious audiences.