Skree

Skrees are creatures found in the Metroid series who presumably became extinct during the events of Super Metroid when their home planet, Zebes, was destroyed. They resemble bats and hang from the ceilings. However, when an apparent threat approaches them, they'll quickly drop from where they rest and shoot through the ground, attempting to hit their opponent on the way. If that doesn't work, then the debri from the ground will possibly smash into their target, thus damaging them to some extent, though basically they're not fatal.