Here's a little breakdown of the Were Hidden in my Moon's Absolute fic.

READ THIS, PLEASE. I DIDN'T TYPE ALL THIS FOR SHITS AND GIGGLES.
The Were Hidden are the least abundant of all the Hidden.

Similar to most of the other Hidden, they tend to be nocturnal. However the sun's light can cause them no harm.

They can control their transformations at will, but if exposed to a full moon they become berserk and attack any and everything. Only when subdued will they regain their default composure.

Were Hidden are the second most agile of all types of Hidden. Sonic is the only one capable of extending his arms like rubber. The reason for this is unknown.

The Weres, contrary to the stories, do not stay in large numbers. Many of them are scattered and few have any idea that others even life close by.

Were Hidden sport sharp claws and teeth. They can convert the Average and Shown into Weres by carving their symbol (a marking of some sort on their own body like a birthmark ) into the skin of their prey. This isn't commonly done, causing their small numbers. If bitten by a Were, the victim can and most likely will die.

Weres tend to wander often. They lack territorial obsession like that of many other Hidden.

Sonic and Tails live with Amy and Chip in an apartment building on the outskirts of Westopolis.