To kill darkside: keep pumping him with powers and hommings and a special here or there.
To kill minion: use the hit and run tactic with everything you have.
Note that this is not being a coward this is enlightened self interest
To kill prime evil: Use your machine gun on the wall that says restricted and then the oter grab the lightning and use it again and again.
Use the same hit and run tactic only much more running. Or freeze him and use remote bombs
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