Most graphic software will be able to tell you the color count, but I looked it up with the PJ image spec tool:
http://yanrishatum.ru/pj/?input=http%3A%2F%2Fpixeljoint.com%2Fpixelart%2F116516.htm
Thank you sir!
As for the colors, where is it mentioned? (I'm kinda new to the interface of the site, so...)
Haha this is really funny! But how come it has 48 colors?
Thanks everybody!