Color every piece in Ninja 5-8 [Color 7 - Pink and Blue from Palette 3] (see comment)
Color every piece in Ninja 1-4 [Color 1 - Orange from Palette 1] (see comment)
Color every piece in Ninja 9-12 [Color 9 - Green and Purple from Palette 5] (see comment)
Color every piece in Ninja 13-16 [Color 3 - Black from Palette 7, if leaving black] (see comment)
Color every piece in any Ninja (except Ninja 15, just hold A button to color every piece only)
Color every piece in Ninja 15 with using every Color from Palette 8 (it contains 8 pieces only, total 80 pieces, see comment)
Use every Color in every Palette (see comment)