This month's MapCore Challenge: prototype a puzzle where the player has to open a door, using the provided template map as a base. (aka, the "Door Dare")
We had a lot of cool entries, so by all means check them out and vote for your 3 favorites.
But because this is my blog, I'm going to shamelessly promote my own entry, "Secret Mission." In it, you have to modify the entity scripting I/O of the map itself, in-game, in order to open the doors. (The actual map logic is all faked, but I imagine the proof of concept is there...)
You might see this mechanic come back in Radiator vol. 4 some day, perhaps in the heavily delayed level, "Being Adam Foster"...