Topic: Different colors from original Game Boy games

I've been trying to search this online but am having trouble finding an answer, so I figured I'd ask here. I was playing the Zelda Game & Watch version of Link's Awakening and noticed colors on the screen are tinted slightly greenish. But other original game boy games, like virtual console games on 3DS, are distinctly black and white. I've noticed this before in screenshots sometimes. Does anyone know why sometimes its greenish and sometimes its not. I know the original game boy had that yellow-green screen but this dosen't look like those colors.

For example look at this screenshot (https://gamefaqs.gamespot.com/gameboy/563277-the-legend-of-zelda-links-awakening/images?pid=563277&img=11) vs. this one (https://gamefaqs.gamespot.com/gameboy/563277-the-legend-of-zelda-links-awakening/images?pid=563277&img=12)

From my memory of owning and playing the original GB, it was tinted green. I think playing on NSO, it does give you 3 options (Black/White, Original Green, and Slight Coloured). Maybe newer hardware or virtual consoles have made things clearer and more black-and-white, making them much easier to see!
On NSO, I favour slight colour or black and white. Green was hard to see in the wrong light!

That first screenshot looks very much like the OG GameBoy. The second looks more like the Pocket. There was also the GB Lite which was Japan only, which had a neon-geeen backlight which isn't like either of these screenshots

Although I will say that as someone who's the right age to have nostalgia for everything GB I don't get the nostalgia for the original look. At all. I always choose GBC colouring and filters for GB games

So I think it is based on the hardware. It looks a little different on the actual consoles because the screen makes the color glow more, but I think the OG gameboy and Game boy pocket had the graphics shaded a little more towards the green side and maybe screenshots just clean it up to a degree so the glow dosen't show as much?

Game Boy Pocket was definitely grayscale. I only recall playing one on the giant Game Boy-shaped kiosks at Best Buy back in the day but I remember being surprised at how not-green the screen was.

@skywake The default GBC palette for third-party GB games is quite eye-searing on the GBA SP 2 (or AGS-101, whichever you want to call it). That palette was meant for the dingy GBC screen and not the bright SP2 screen.

It's ultimately down to how Nintendo chooses to represent the games. In the G&W they simply chose to use a slight green hue, which I think looks pretty nice.

Way better than the horrible oversaturated low-contrast greens or boring black and white we had on the 3DS... A happy middle point.