Thunderon is a main antagonist together with his partners Falkar and Demonite who appeared in the Ryan's destiny episode in thee TV series Power Rangers Rescue.
Lightspeed Rescue
After several failures and if pressed by Queen Bansheera, Diabolico the sends three demons to destroy the once for all Rangers that are Demonite, Falkar and Thunderon, three monsters created unique feathers and played throught the city.
The threes monsters were perceived by the Lightspeed Rescue, Thunderon then fights against Kelsey and Dana and manages to overcome them, they then reveal to the Rangers that they were explosive and that is hidden in the dark areas, they then fight against the Rangers more as the three demons have more advantages over the Rangers, plus Ryan arrives and saves the Rangers causing the three demons to retreal.
The Three Monsters then returned attacked the city and fought against the Rangers with help from the Demonite Clone provided by Diabolico in aid of the Rangers's destruction, when Carter threatened to destroy Demonite appears and attacks the Carter, so Carter uses the V-Lancers in the Demonite Clone destroying both the clone and Demonite himself, forcing them to become giant he fight against the Megazord more is destroyed by the connations, then Falkar and Thunderon retreated.
Soon after the Rangers are called when the two demons Falkar and Thunderon were attacking the city more that despite the death of Demonite however the demons managed to give work to the Rangers, but nevertheless they managed to use the disadvantages of and they destroyed Thunderon making it grow in the giant size along with Falkar, they then fought against the Supertrain Megazord, so the two demons were about to destroy the Rangers plus Ryan with his Max Solarzord arrived and destroyed the two.
Diabolico found the Rangers and got the three gems of the demons and merged Demonite, Falkar and Thunderon thus creating the Troika he then fought against the Rangers and won them without any difficulty and calling the Rangers to retreat, Troika then began to attack the town with barbarity to try attract the Rangers, then the Rangers appears and fight against the Troika but even so they do not try much choice they use their new weapon Battle Booster and with the help of it they manage to damage the Troika they then use the Battle Beam against the Troika thus destroying the powerful demon of Diabolico.