As a quick offshoot in regards to the graphics, one of the most interesting mixed bags to me is WL2. Playing it on the GBC makes the graphics look really nice without much to dwell on, but on original GB hardware it's a more complicated story.
Giving Wario the light outline around him in the GB version was a really good move and helped ensure that he popped out when working with the much smaller amount of colours on screen. In general with the limitations in mind I think the game looks great. However, what I do have a problem with is in regards to the game when played on the Super Game Boy.
Image courtesy here
Now, the borders rendered on the Super Game Boy are absolutely lovely and help with the engagement of the game given that they link in with the level you're on. The problem I have is the washed-out colour choices on the special palettes given to you on the SGB. Other than in cases like the title screen or DD minigame there, the overall look is very dull and the colours don't stand out as well as they should. As opposed to giving the game some colour as is the intention behind the SGB's existence, playing WL2 on it feels akin to playing it with a greyscale palette with a tint splashed over it.
This wouldn't be too much of a problem if you could edit the palette yourself as is possible with the vast majority of games that work on the SGB, but for some reason with WL2 in particular this feature has been disabled for some dumbass reason. What makes it so frustrating is how great a job Donkey Kong '94 did with palette choices to make all the colours stand out, and how dulled WL2 looks by comparison. Even the palette suggestions in the SGB's guide for WL1 did a better job in having a colour scheme that popped nicely for each world. Mind you even then Donkey Kong Land fares a whole lot worse; unless you're playing in a way where you can seperate the sprite and background palettes, trying to play those games properly in most forms is like being stabbed in the eyes.
yes i know the super game boy is an outdated bit of kit shut up