Ribot
From Sonic Retro
Ribot, or Keroppo (ケロッポ) in Japan, is a frog-like badnik from Sonic the Hedgehog 3 found in Launch Base Zone. This stationary badnik has three ways of attacking: swinging a metallic ball through the air in circles, punching the ground with a pair of weights or sweeping the ground with a weight on each hand. Avoid the weights, and destroy them with a spin or jump.