Nyehehe I love these things. xDD My new obsession.
A Shimeji is basically a "desktop buddy" that sits on your desktop, walks around, climbs on the roof and walls. xD You can also pick them up and toss them around your screen. They're fun to have around.
I have a Shiny Eevee shimeji, a Pikachu, a Suicune, a Chibiterasu, a Toothless and my MLP shimejis that I love more than anything. xD
So, anyone else have or heard of shimejis? You can find a lot on dA if you just type in "shimeji" and hit search.