Jump It

A purple wizard, with no magical powers; double jumping over small towers.
A creature in the back, hiding in the dark. Why is it there? I dunno, I ain't no narc.
So beware dark creature, I will defeat you with my might! By activating the stars that cast the bright lights.
I know I'm deformed, my eyes so BIG! So please don't tease me, or a hole I will dig.