Tatanga

Tatanga is a villain who appeared in the Super Mario Land series. He is an alien who usually fights inside a spaceship.

Super Mario Land
Tatanga appeared as the main antagonist of Super Mario Land. He invaded Sarasland and kidnapped Princess Daisy to marry her and make her his queen so he could rule Sarasland. Mario traveled through four kingdoms and fought Tatanga. Mario defeated him and rescued Daisy.

Super Mario Land 2: 6 Golden Coins
Though he appeared to die in the previous battle, only his ship was destroyed. Tatanga survived, and fled to Wario's castle. It is revealed that Wario paid Tatanga to kidnap Daisy as a distraction so he could take over Mario's castle. Tatanga is one of the six bosses in the game before Wario. Mario defeated him in the Space Zone, destroying him this time. He has not been seen since.