It was just an internal change to fix a server crash.
Yes. Although Space Race can only have a single environment, never multiple together. And electric environment is disabled.
what do you mean? Bounce off an enemy and hit another one? Riddler could do that in theory, however I don’t keep track of whether an enemy is metallic or not.
I don’t want to endlessly tweak boss attack patterns. It wastes time which can be better spent elsewhere.