- Brinstar, Kraid's Lair
The second enemy Samus encounters. These bat-like enemies hang from the ceiling and kamikaze at Samus when she approaches. When a Skree hits the ground, it spins its wings around like a drill and burrows, causing dirt and rock to fly up at high speeds, potentially causing harm to anything nearby.
If your fingers are fast enough, you can kill a Skree before it touches the ground by aiming upwards and rapidly shooting your beam. One missile can kill them too.
Due to the basic graphics of the NES, it looks like Skrees explode instead of burrow. This idea led to the concept of Shriekbats in the Prime series, which explode after attacking you. In Zero Mission and Other M, Skrees explode after touching the ground.