Help with boss fight?

[ALoSaurusREX]

I need help with boss fight. I'm facing this guy that replicates himself 15 times. I don't know what his name is since I'm not totally familiar with the Superman series. Anyways, I keep killing the guys and he keeps making more.

How do I kill this guy?

[babyfarmer]

Don't punch him, that just makes him multiply more. Freeze him/them with your freeze breath, then use heat vision to burn him.