Most minipets can change colour by using yarn or Fasoro Falls. There are some exceptions:

Minipets that do not have other colours.
- Bug, Organic and Robot (including Bootleg Organic)
- Many of the newer minis (check in the search bar to see if other colours are possible)

Minipets that can't change colour
- Undying (must be created in the colour wanted)
- Fish (colour is as caught in Fishing game and Pearl Hurl)

Minipets that can't be changed at Fasoro Falls
Gourmet & wild minipets cannot change through Fasoro Falls but can change with balls of yarn IF a colour variation is possible
Some pets colors be changed with yarn, eg Fat minis. Note that Fat minis must be created with Ball of Fat Yarn, Fat is not a Falls option.