From the Super Mario Wiki
The title of this article is official, but it comes from a non-English source. If an official name from an English source is found, the article should be moved to its appropriate title.
Rerere is an enemy exclusive to the last stage of the Pumpkin Zone in Super Mario Land 2: 6 Golden Coins. They attack by bouncing back and forth as they sweep the ground, and if one of them hit Mario, he will suffer damage as a consequence. It takes one bounce on top of them to stop them, or a Fireball. They are perhaps the toughest foe in the game to directly bounce off of, due to the fact they are so long and thin.
Names in other languages