Entry for Ludum Dare! http://www.ludumdare.com/compo/ludum-dare-27/?action=preview&uid=27520
Horses, they all dream of becoming a unicorn one day. You can help one of them make his dream come true, for 10 seconds. (and unicorns really detest regular horses, so things might get ugly)
I used flixel for this game. Developed with flashdevelop. Sounds made with the AS3SFXR. Music from keygenjukebox.
EDIT: for all of you pussies who can't press the mouse 10 times per second, there is now a pussymode, press space instead of the mouse to grow your horn.