This sizeable koopa is a gigantic take on the normal SMW one. It comes in four color variants, each complete with a full version, naked version, and empty shell version. You can also put wings on any form. By default, every possible combination of color and spawn state has its own configuration. This includes the things you'd expect like green koopas walking off ledges, reds turning at ledges, blue koopas kicking shells, and yellows chasing you and dropping coins. We also filled out the unused combinations, such as winged blue koopas flying in circles. This sprite has a lot of defines that you can use to tweak the behavior of each color. You can set up to two different behaviors for each color/state combination and toggle between them using the extra bit. If you use this sprite, make sure you thoroughly read through the comments at the top of the .asm file.
This sprite gives Yoshi special powers when he eats one of the shells. Because of how SMW works and our "sprite only" restriction, we were unable to add support for Red Yoshi. See defines/comments for how to work around this.
Requested for the Strongest Sprite Workshop 2020 by Anas.
While quite interesting sprites, there unfortunatelly are a couple (sometimes notable) issues:
Slopes are janky, I have managed to fall a shell through one.
The direction where Yoshi gets scared is inconsistent—he sometimes runs away in the opposite direction where Mario is looking:
That Yoshi is flashing when he has eaten a non-green shell is cool but also doesn't work as intended: Shuffling Yoshi's palette also affects the gameplay meaning that yellow and blue Yoshi's abilites don't work half of the time if the shell has got a wrong colour (particularily the latter since flying with a shell becomes very difficult) and Yoshi will keep that colour when exiting the overworld (it's the easiest).
Shoving is interesting but it really feels random how they shove Mario (e.g. they suddenly bounce Mario to the right when he should have been pushed to the left).
Dropping the shell is weird too as you can end up kicking it while dropping (kind of) which activates blocks in a weird way.
Why does the sliding Koopa suddenly turn into a shell when killed?
You can carry a shell with a star even when the Koopa is set to get killed with a star. I know, it might be an anti-frustration but it's still weird how a star can not kill an enemy when all the others do.
Blue shellless Koopas may sometimes not kick the shell once, causing them to kick it again.
Lastly, the interaction methods for shells with shellless Koopas mentions that they can interact with normal shells, using them as helmets if they don't kick the shells. I have never seen this feature during my moderation, though. That could be because it was a feature for the C3 release and has been removed for the section but the description hasn't been updated, has it?