Red and Blue predated the GBC but if you played it on one it would tint each area a different colour based on the area. However it wasn’t until Gold and silver that more varied pallets would be used. This game has an IPS patch applied to it to give it similar colours.
I assume you are running a ROM hack of some kind, because pretty sure Blue doesn’t look that colorful on the GBC?
The first clue is that’s not a real game boy
https://www.romhacking.net/hacks/1385/
Yeah this is what I was thinking of, it definitely seems to fit the bill.
deleted by creator
Red and Blue predated the GBC but if you played it on one it would tint each area a different colour based on the area. However it wasn’t until Gold and silver that more varied pallets would be used. This game has an IPS patch applied to it to give it similar colours.
Yeah the entire game was shades of blue, except Lavender Town (IIRC), which was lavender.
The Super Gameboy for the SNES let you play Pokemon red and blue in color. It looked similar to the screenshot shown.
For Pokémon Blue the Super GameBoy definitely looks better than the GBC/GBA/GameBoy Player on GC, but not as good as what OP posted: https://youtu.be/U0xLy6-_570?si=IZl_jj3L0W8azS-i