While they are weak to Missiles in the original Metroid, they have no effect in Super Metroid.
"These creatures fly down from the ceiling, attack Samus then fly back up. Armor-plated like the Geruta, they are also armed with two horns. It takes several blasts of the normal beam or a single missile blast to destroy them."
Official Nintendo Player's GuideEdit
"It attacks Samus from the ceiling. Its defensive power is very strong, so try to beat it with a missile."
"They swoop down at you. Stand back and shoot."
- Holtz bear slight resemblance to Meta Knight from the Kirby series.