can we get a way to destroy or otherwise permanently subdue the slime nests? maybe a trap/net that blocks all but the smallest (gray) slimes?
I think being able to block off nearly all enemies would end up destroying the balance of the game, especially if it was something you could unlock and just apply to the spawners in quick succession. I might be able to work with something you're limited to one of per map that allows you to completely block enemies to let you build around one area safely. Figuring out what setup will let you neutralize nests with defensive structures was always my intent though.