well if it sneaks up on you, you'd be dead anyways. also, that system isn't a good one, since any time you get snuck up on by a creeper (which happens a lot since it's designed to sneak up on you) you'd just instantly lose everything. combine that with the fact that it doesn't burn in daylight and spawns a lot during the night, and you'd have an enemy that would feel very frustrating rather than fun or challenging
