Cresselia's back, front, shiny and non-shiny sprites have that blue outline around her, er, pink aura thingers.
If you select shiny for them, Gourgeist Large, Small and Super shows up as a shiny in team preview, but once the battle starts it shows up as normal. This occurs with both back and front view. The normal Gourgeist however shows up shiny fine. I'm not sure if this is a problem for this thread or the bugs thread.
Vivillon's back view is
slightly blurry in battles. Front is fine.
Carracosta's shell is flickery around his face and up the top part of his left (our right) shoulder.
Victini's front view is blurry.
Togekiss' feet gets cut off a bit, this only happens for the non-shiny front view sprite.
Also... Front view, non-shiny Togekiss is blurry in battles. But the back view shiny Togekiss is blurry.
Extremely extremely minor, but if you put it on a darker or non white background (i.e. the background in battles) it's easy to notice. On Scolipede's (both shiny and non-shiny) tip of his horns you can see a bit of white pixels moving around outside of it. Again you can't really notice it on the white background of this forum but if you put it against the background of a battle you can see it and I personally can't stop staring at it. Here, I put it against a dark background to show what I mean.
The shading on his tummy also looks a bit fuzzy but idk if that's a criteria to fix it ahah.
A couple of problems with Darmanitan. First, his shiny sprites move faster than his normal one. Also, he has a lot of white pixel noise going on around his eyebrows in all of his sprites, back, front, shiny and non shiny. His shading also seems a bit fuzzy.
Mega Aggron's dark parts of his body are pretty flickery in his non shiny front view.
Shiny Infernape and Shiny Gardevoir's back sprites are a bit blurry. Non-shinies are fine, and front view is a-ok.
Front view non-shiny Typhlosion is a bit blurry. Back view is fine.
Mega Blaziken has quite a few flickery bits. Namely his hands, belly, and both feet.
Non-shiny Solrock's front view is blurry. It's sides and bottom 'sun ray' also gets cut off a bit, the shiny doesn't have this cut off.
Non-shiny Slaking's front view is blurry. The back is fine.
Non shiny mega gengar has a flashing third eye and his shading also goes all crazy.
Deoxys-D's back view has flicker on his leg 'disc'.