Mario encountering a Mega Unagi in New Super Mario Bros.
The Mega Unagi is a very large Unagi found in a couple levels in New Super Mario Bros. for the Nintendo DS. In one level several are encountered swimming toward Mario or Luigi throughout the level, in the second level a single one will chase Mario or Luigi for the whole level. The Mega Unagi's can destroy Brick Blocks as the swim similar to Mega Mario. Mario will not lose a life instantly if he hits it but he will take a single hit like with other enemies.