That string sounds like it might be pulled from a very specific fan-made game or a deep-cut ROM hack search. In the Pokémon community, phrases like "New Rubis" and "Shadow" typically refer to fan projects like Pokémon Rayless Ruby & Shadow Sapphire
You awaken in a Littleroot Town that is perpetually sunset-tinted ("Hot"). The sky is a bruised orange. The water reflects nothing. Professor Birch is gone, replaced by a silent, shadowy doppelganger who hands you a corrupted Pokédex. The title’s four keywords are not random—they are the game’s four pillars:
Here is the brutal reality of this specific patch. Forget everything you know about vanilla Ruby. pokemon version new rubis shadow normal down hot
FINAL VERDICT (from the leaked beta notes):
I managed to get my hands on a beta build description from a former Game Freak contractor (yes, another one of those posts—but stay with me). The three keywords floating around the dev chat logs are SHADOW, NORMAL DOWN, and HOT. At first, it sounds like a weather report. But after spending 12 hours digging through the metadata, I think I've cracked the code. That string sounds like it might be pulled
(Swampert) is often the strongest choice due to its excellent typing. Early Items Mauville City early to obtain the (traded for Harbor Mail) and Rock Smash Status Moves
Listen up, Trainers. Forget the usual Paldean Tera Raids. Forget the 1,000th shiny hunt. There’s a new storm brewing on the dark web of gaming forums, and its codename is PROJECT NEW RUBIS. The water reflects nothing
The terms "New Ruby" and "Shadow" typically refer to unofficial sequels or modifications that introduce darker mechanics from the Pokémon Colosseum Shadow Pokémon : This is a core mechanic in the Pokémon Rayless Ruby and Shadow Sapphire