Butterflies are critters that appear in every Spyro game, starting with the first game, Spyro the Dragon. A butterfly is released from a fodder if Spyro defeats it. Butterflies are as a food source for Sparx, who can eat them to regain an increment of his health; if Sparx is green, eating a butterfly turns him blue, and then eating another turns him yellow. If Sparx is already yellow, eating a butterfly has no effect.
Beginning with Spyro 2: Ripto's Rage!, there are blue butterflies, which grant Spyro an extra life. A blue butterfly can be found in every Butterfly Jar, which Spyro must break to free it. Blue butterflies are also released from every tenth fodder that Spyro defeats.