Egg Bomber
From Sonic Retro
Egg Bombers are combat automatons constructed by Dr. Ivo "Eggman" Robotnik, deployed by the mad scientist in and around Soleanna during Sonic the Hedgehog (2006).´
They are small, crab-like robots that can scurry on both horizontal and vertical surfaces. They have light armor, so they can be destroyed with a single hit. Egg Bombers have an appendage built specifically for throwing small red exploding bombs at targets. They can only release one bomb at a time, and require a few seconds to reload.