Resize Pokémon Crystal sprites to a minimum of 56x56 size. Also make them face left if necessary.
Fix Crystal sprites animation where needed
Fix Crystal sprites coloration where needed
Fix Diamond/Pearl animation where needed
Fix Emerald animation where needed
Fix Platinum animation where needed
Fix Black/White animation where needed
Fix Black2/White2 animation where needed
Upload the animated versions of Pokémon Diamond, Pearl, Platinum, HeartGold and SoulSilver sprites.
Upload the missing Unown sprites from each generation.
Make the Crystal and Emerald animations as APNG.
#222: Status is missing.
#0b0: Image is OK; sprite is not shown.
#400: Sprite should be transparent, but it isn't (fully or partially, e.g. white areas where they shouldn't be; this also includes those which have transparent areas which should be white).
#004: The size of the sprite is incorrect and/or sprite is flipped.
Correct sizes for sprites are 56x56 pixels (Gen I and II sprites), 64x64 pixels (Gen III sprites). Does not apply to Emerald and Gen IV, since their animation makes them to use variable size. In Crystal the sprites stay in the 56x56 box, so the size limit applies to them. Sprites should face left (as if they were just encountered in a wild battle).
#040: The sprite is still, but it should be an animated one.
Sprites in Crystal, Emerald, Diamond/Pearl, Platinum and HeartGold/SoulSilver columns should be animated.
#440: Transparency problem + wrong size and/or flipped
#404: Transparency problem + not animated
#044: Wrong size + not animated
#444: Multifail: transparency problem, not animated, wrong size and/or flipped