ocks that have a negative score; these will take points away

o, look out for the useful power

	xtra life: Gain one l
	down: Slows the speed of the ga

l; not all power ups are usef

	dden Blocks: All blocks lose their col
	our Swap: Changes the colours on all blo
	he Black Death: Lose a l

nd be careful - the game keeps getting faster and faste