The king of Thunder, the formidable Lyon-O, is a senior security officer of his kingdom, and now his subjects are in grave danger. Recently, small strange creatures similar to slugs have appeared on the lands. They did not attach importance to this, but when their number began to grow rapidly, and their leader issued an ultimatum to the ruler, Lyon decided to deal with it himself. He went to the underground caves, where hordes of slugs dug in, in order to get to their leader and explain who is the boss. Help the hero go the heroic path, smashing all obstacles with a sword and dealing with green enemies. Have to jump and fight in the game ThunderCats Roar Lion-O's Quest