  In this paper we study updating effects on cellular automata rule space. We
consider a subset of 6144 order-3 automata from the space of 262144
bi-dimensional outer-totalistic rules. We compare synchronous to asynchronous
and sequential updatings. Focusing on two automata, we discuss how update
changes destroy typical structures of these rules. Besides, we show that the
first-order phase-transition in the multiverse of synchronous cellular
automata, revealed with the use of a recently introduced control parameter,
seems to be robust not only to changes in update schema but also to different
initial densities.
