Behind the Door is a stickman memory game with a time limit. Took me a while to figure out how to play it because the rules are not explained. Basically Behind the door is a memory game, a mixture of xo and a shell game where you follow the patter of a green symbol trying to repeat it in a reverse order. What does that mean? Well, the symbol shows up randomly behind one out of three doors and the position changes very quickly and randomly. If we mark the left door position with l, middle one with' and the right one with 'r', and let the green symbol make the following pattern: llrm, then when your turn comes you need to reproduce the same pattern in a reverse order by using a mouse like this: click on medium, right, left and then left again (mrll). If you do it well, if you click the correct door in a correct (reverse) order, you will get the prize - a puppy or something else and you will move on to a new level. Otherwise, you die, either getting killed by a chainsaw or something less painful and then you play the game from the beginning. The patter randomly changes!