Still not described too well, do you mean each enemy has their own spawn point? If so, you could just create 4 objects and spawn them from their spawn point rather than use one. If it must be one spawn point object, then you need to pick them in some way. For example with an instance variable equal to 1, you could say pick spawn point where var=1, spawn enemy 1; pick spawn point where var=2, spawn enemy 2.