The Dragons have black rubber scales, with grey rubber bellies, red eyes and green drool.
Role in the film
When Kayley and Garrett enter Dragon Country, some of the dragons are shown as skeletons in the gorges. A shadow of a dragon can be flying over Kayley as she tries to hide but quickly rescued by Garrett who is hiding in a eggshell.
Not long afterwards, when the pair first meet Devon and Cornwall who are bullied due to their smaller size and inability to breathe fire or fly, the group are quickly attacked by the dragons. Devon and Cornwall help them cross the acid lake. As Garrett has trouble crossing the lake, One of the Dragons caused a tidal wave sending Garrett to the other side, unharmed. All of the black dragons breathe fire at the group who narrowly avoid them and they see the Griffin flying and Ruber and his army (who has caught up with them) running on the opposite side. The heroes hide in a wormhole underground tunnel as Ruber and his army faces the dragons. Ruber slows backs up on the wall, just as the dragon approaches him; Ruber then punches the dragon in the face, killing it instantly and later roasts it on a spit for him and his henchmen to eat.
A dragon breathing fire at Devon and Cornwall whilst chasing them.
One of the dragons cornering Ruber
until Ruber punches it in the face, effectively killing it.