Additional Costumes are special, non palette-swap costumes that are obtained through various events. These costumes are often based off special outfit a character can wear in their game of origin, or another similar character altogether. From a gamedev perspective, additional costumes requires to create entirely new sprites, sounds, or particles.
List of additional costumes
Ornate Plate
An armor Shovel Knight wears in Shovel Knight : Shovel of Hope. This skin adds shiny particles and can be bought in the Shop for 7777 coins. Released at launch.
Hanfu Lilac
The Hanfu dress that Lilac wears in Freedom Planet 2. Released July 24th, 2018.
Rainbow Stardrop
Stardrop with an ever-changing colored body.
Lumina
Lumina from World to the West as an additional costume for Teslakid.[1]
Skeleton Velocispider
A skeleton variant of Velocispider.
Prisoner Zorbié
Zorbié with a prisoner outfit.
List of Kickstarter Exclusive Skins
Golden Blockman
A special, Kickstarter-exclusive skin for Blockman. Adds shiny particles and golden blocks. Released July 23th, 2018 to all backers who pledged high enough.
Money Stardrop
A special, Kickstarter-exclusive skin for Stardrop. Green body, replaces their titular trail with a money trail. Released August 13th, 2018 to all backers who pledged high enough.
List of DLC (Downloadable Content) Skins
Wedding Octodad
A costume Octodad wears in the intro sequence of Octodad: Dadliest Catch.