Appearing in the Museum and the Chrysler Building, Armadillos are dangerous because of the fact that they attack in groups and; depending on how few of them are left, the more times they perform their rolling attack. This is however, fairly easy to dodge.
These appear after they cause a cave-in in one of the Museum floors. They are not much different than the normal variety that are encountered later on. Their Roll attack, as with all other Armadillos, is easy to avoid as it is telegraphed in advanced, allowing Aya to run out of the way. Take note that, when Armadillos die, the groups perform the attacks additional times (one for each member killed) so this is important to keep note of.
After the defeat of the original set of Armadillos, these replace them. Really not much different than the others save for their lower Experience gains, Armadillos are not a pain because of the fact that they can be easily dodged with minimal effort.
Basically the same enemy as the other two Armadillos, this one as almost double the HP but only about a tenth of the Experience, something that is a trend for most enemies that appear in the Chrysler Building. They are more dangerous but can easily be dealt with.