Death rays will not kill metroids (except baby metroids). Instead, the energy will stimulate the metroid to bud or divide, creating one or more new metroids or baby metroids, depending on the development stage of the parent metroid.
Baby metroids are the weakest form of metroid, and are not normally generated. Metroid eggs hatch into baby metroids. If a metroid egg hatches in your inventory, the resulting baby metroid will always be tame.
Baby metroids are too young to divide, and will therefore die if zapped with a wand of death. They also do not have a life-draining bite.
The most recognizable form of metroid. Only 21 will appear in the dungeon.
If zapped with a wand of death, a metroid divides to form a second metroid.
At most 45 alpha metroids will appear in the dungeon.
If zapped with a wand of death, an alpha metroid will bud off a baby metroid.
At most 48 gamma metroids will appear in the dungeon.
If zapped with a wand of death, a gamma metroid will bud off a baby metroid.
Only 9 zeta metroids will appear in the dungeon.
If zapped with a wand of death, a zeta metroid will bud off a metroid.
At most 21 omega metroids will appear in the dungeon.
If zapped with a wand of death, it will bud off a metroid.
Only 3 metroid queens will appear in the dungeon.
Metroid queens wander around their dungeon level, laying eggs at irregular intervals. If zapped with a wand of death, a metroid queen will bud off three metroids.
A tame metroid queen will revert to peaceful at the start of her next turn.
Metroids appear to be able to sense the life energy of their prey as they have no visible sensory organs.
In their natural life cycle, Metroids gradually metamorphose to take a somewhat reptilian form, growing a hard organic shell, a head, and limbs, eventually shedding their gelatinous membrane completely. The shell removes their weakness to cold temperatures. The egg-laying Metroid Queen appears to be the only form in which Metroids can normally reproduce, although many Metroid bioforms can divide almost instantaneously when exposed to certain kinds of high-energy radiation.