Before i go into "the code" i should explain what "the code" is. Basically I've been doing some research on multiverse travel and came up with the most likely rules and outcomes for the wayward "traveler". it took me years to put this together, and i was planing to put it in a new series i want to write, but since i already talked about it i might as well read you "The Code". Oh and this is just 2 of the rules not all of them, it would take me hours to write and i don't have the time.
1.Each world in the multiverse holds it own unique wave length, if a human was to travel to a world of ponies, the worlds unique wave length would automatically change the human into the native form, this is caused duo to human kinds own wave length. in order to maintain the worlds "Flow", the worlds wave length sends a powerful surge of energy into the body, transforming the "traveler" into one of native species of that world. However this rule will not always come to pass if the human wave length exists on that world, for example say a "traveler" enters a world domination by giant slugs, BUT at one point, human beings lived on that world, so since human had been on that world before, the human wave length still lingers enabling the traveler to stay in human form. Along with the multiverse, each world has its own multiple dimensions, since each being sends out its own unique wave length along with their worlds, each dimension can't contain two beings with the same wave length, so in order to stabilize the "flow, 3 thing may happen, 1. the "traveler" overshadows their counterpart using them as a host, once the traveler leaves, the host will have no knowledge of what occurred. 2. if the counterpart is incompatible, the world will adjust the "travelers" wave length, just a little so the wave length won't match that of the counterpart. 3. if the counterpart is deceased, the world will make a shadow of the counterpart as a temporarily body for the "traveler", if the counterpart died of old age, the shadow will aged to a younger yet mature age.
2. THIS IS A BIG ONE, what ever you do, do not, i repeat do not temper with the 'Flow", if you in any way tell anyone about events happening in the multiverse, it could change the "flow" of that world, if you talk about a post-apocalypse dimension, the people of that dimension would build defense in case it happens there, thus causing a new chain of events. if you have done so, as long as the "flow" remains intact and no magic or technology is disused it should be fine. some times an event is change by a outside power causing the "flow" to falter, thus causing a "traveler" to come to that point to fix it. if an item that caused the flow has pieces of it scatted around the multiverse, the item will send the "traveler" where their needed most.
Side Note: Items holding the soul, body and mind of a living being can cause the worlds flow to change if a counterparts wave length resides in that world.
So that's a small sample of "the Code", if you want to hear more just comment.