Quote from Kaiser:
In all Metroid titles, there where never a chance to kill a "normal" Metroid without Ice Cream. If you don't have it, use Evasion/shoot them to keep them away from you.
And, if a metroid grabs you, use evasion! It'll stop the damage for as long as you're spinning.
And, if a metroid grabs you, use evasion! It'll stop the damage for as long as you're spinning.
Technically, you can kill metroids with powerbomb (it takes a few of them) and no ice beam. Definitely not the recommended way and evasion would be much preferred in this case.