Bunny Bagger is a secret achievement in Divinity II: Ego Draconis. All you need to do is kill 30 to 35 rabbits, then the Killer Bunny will make an appearance. Once it appears, the screen will zoom to its bloody face - immediately after, JUMP AWAY! It will spawn very close to your character an will ALWAYS hit in melee. There is no level requirements to fight it either, so it is possible to make it appear when you're at level 15, however if it lands a blow at that low of level, you will die almost instantly.