[0100e2601942...: Oni Road To Be The Mightiest Oni

The game focuses on a small demon named Kuuta and his spirit partner Kazemaru as they undergo trials on Kisejima Island to eventually defeat Momotaro. Key pieces of "interesting text" include:

The "phantoms" of demons previously defeated by Momotaro often speak "bitter words" that the official game site suggests may hold hidden meanings about the world and its history.

Various documents have washed ashore on Kisejima that describe past events on the island, providing cryptic lore for players to uncover.

If the text you are looking for involves a dystopian future or a World Coalition Government, you may be thinking of the 2001 game Oni (developed by Bungie), which has a completely different plot set in the year 2032. ONI : Road to be the Mightiest Oni for Nintendo Switch

The developers at KENEI DESIGN explicitly intended the world to feel like jumping into the pages of a "childhood picture book," leading to unique and evocative descriptive text.