Something

class TestingBullet(Bullet):
	def __init__(self,bulletlist):
		Bullet.__init__(self,bulletlist)
		self.x=1
		self.y=self.rect.centery
		self.bspeed=.6
		self.xspeed=.1
	def update(self):
		self.y -= 20
		if self.rect.bottom <= 0 or self.health <= 0:
			self.parentlist.remove(self)