Sonic Hedgehog:

1) A famous hero for a console game entitled 'Sonic the Hedgehog". Dreamt up by a Japanese dude working for Sega.(i think) Reached peak popularity during the early 90's.

2) The name of a homeotic gene which has been proven to play a cruicial role during the development of a fetus. Sonic Hedgehog mediates the interactions between the notochord and the ectoderm and mesoderm beginning at abouts 18days after fertilisation. The notochord induces the body to form around it- it is the "anchor" for the development of the fetus.

A gene called Sonic Hedgehog.
How about THAT?

P.S. 6 days till i get home!