In either Kingdom Rush or Kingdom Rush: Frontiers there is a circular object that looks as though it might be a teleportal. Sadly clicking on it shows that it is broken – only some of its lights come on.
I am trying to find a good-quality image of it but am not sure what search term to use.
Does it have a name? Can it be activated?
Best Answer
It's a TV show reference
I believe I have found what you are referring to. You can find this in the second level of the second game (Kingdom Rush Frontiers), called Sandhawk Hamlet.
The screenshot below is a zoom-in of that part of the level.
This object is a reference to the sci-fi show Stargate SG-1. It does not serve any gameplay purpose like many of the other easter eggs in the game.
Some of these other easter eggs can unlock achievements for finding and activating them.