What parts of God Machine faze 3 final part are RNG and what strategy can I employ?

[Dobious]

I really can't see any pattern as to what I should do. I survive the previous parts in the sweet spot (though even that spot is a little inconsistent as sometimes I die or get hit twice there) Then when lighting starts striking again and the fingers shoot from everywhere I die pretty quick.

I've tried looking at the guide carefully but can't get anywhere.