1. leave only the stickman(stickmen) and the door after each Un-Openable Door.
2.Leave no carnage from trying to open the door (unless, like in Gecko's, it is a LOL of life or something).
3.Tag each one of the Un-Openable doors with "contest:un-openable door"
4.When saving, be sure to make it an open source.
5. Click on the @ sign to continue the contest