Your personal Tumblr journey starts here
Imagine, if you will, a nice looking creature. Perhaps one might even call it cute.
Now give it a set of large fangs for locking onto hapless prey. Quite a change of pace. Make it impervious to glancing strikes and give it the speed to dodge anything substantial. Give it the ability to soar through the air to anyone foolish enough to get near. Give it the ability to end a life in as many seconds as you have fingers on your hand. Quite a nasty creature, now.
You are now picturing a Metroid, yes?
Wrong
What you are picturing is The Killer Rabbit of Caerbannog from Monty Python and the Holy Grail.