Most of the ambigrams on are of this type. The word spelled out from the alternative direction(s) is often the same, but may be a different word to the initally presented form. This is usually 180 degrees, but rotational ambigrams of other angles exist, for example 90 or 45 degrees. There are many different types of ambigrams, most of which usually fall into one of several catagories: Rotational A design that presents several instances of words when rotated through a fixed angle.
