Instructions
 
Run BYOND. 
Open the game̵7;s code and navigate to the code defining the object that should be able to move. 
Define the object as a movable atom, which is a unit capable of movement in BYOND. To do this, enter the line of code: 
/obj 
The line of code /obj is appropriate for objects that move in the field, such as draw bridges or cars, while /mob is appropriate for creatures, such as heroes or monsters. Mobs that are designated as a /character automatically have the default movement assigned to the arrow keys. Mobs and objects that are not players will have the default wandering script.
or
/mob