Shield kills medusa heads?

[Alanfalcon]

I think that one kind of Medusa never permanently dies was a kind of feature. Or at least I'm pretty sure I agree with others here that it works well as a feature.

And

action is default room state

... it's possible a checked a box along the way to see what it did, found out it did nothing, and so ignored it.  Possible, but not totally likely.  Still, probably someone did that?

It would be best if it actually worked as it should, at least in the sequel.