Satellite

A Guruguri (generically referred to by Nintendo Power as a satellite ) is a spinning spiked object that only appears in Super Mario Land 2: 6 Golden Coins. They only appear in the final stage of the Mario Zone. Guruguri are completely invincible obstacles that spin around spheres in a manner similar to a Roto-disc or Kaitensuru Honō (with the Perfect Edition of the Great Mario Character Encyclopedia even suggesting the Guruguri being a mechanical version of the former), though they are a bit slower.

Encyclopedia Super Mario Bros.
Bio: 玉の周囲を回転している. トゲがついており、触れるとダメージを受ける. (It rotates around the ball. It has spikes on it, and if you touch it, you will be damaged.)