Geemer

Zoomers are enemies from the Metroid universe. Zoomers are semi-spherical mollusks with spikes along their backs. They originally only appeared in two colors: yellow and red, Zoomers are only capable of walk in set patterns, meaning that they can't directly attack other characters, the only way the characters can get damaged by them is by simply touching a Zoomer.

In Super Smash Bros. for Nintendo 3DS
Zoomers appear as common enemies in Smash Run.