Dragonzamasu (alternatively Dragon Zamasu) is the second boss in Super Mario Land. He resembles a large Yurarin and Yurarin Boo. Dragonzamasu is in charge of the Muda Kingdom. During Tatanga's invasion of Sarasaland, Dragonzamasu came under Tatanga's control.
In battle, Dragonzamasu attacks by spitting fire at Mario in his Marine Pop. To defeat Dragonzamasu, Mario has to shoot twenty torpedoes at him, while dodging Tamao, who floats around the arena and can block the Marine Pop's torpedoes. Alternatively, Mario can defeat Dragonzamasu by shooting torpedoes at the blocks in the bottom right corner of the arena, and activating the switch behind these blocks. Either way, Mario is awarded 5000 points for defeating Dragonzamasu and is allowed to progress into the Easton Kingdom.
In the Super Mario-Kun manga, Dragonzamasu steals Mario's Sky Pop and challenges him to a duel under the sea. Mario, being one to not back down, dives after Dragonzamasu only to find that Tamao is dutifully protecting his seahorse master. Dragonzamasu is also known for his constant talking, never pausing for a breather until Mario (or a Torion in one case) interrupts him.