Spyro 2: Season of Flame

The game's story centers on the abduction of the Dragon Realm's fireflies at the hands of the Rhynocs, causing the dragons to lose their ability to breathe fire. The protagonist of the story, Spyro the Dragon, must recover the fireflies and uncover the culprit behind the firefly theft. Fireflies can be found in many places, either scurrying around in wide-open spaces or hidden behind obstacles. Fireflies can sometimes be received as rewards for performing tasks for the citizens of the Dragon Realms. Source: Wikipedia, "Spyro 2: Season of Flame", available under the CC-BY-SA License.