The level Abomination contains a well hidden bandage, to collect the bandage you must jump into the first building on the left and manuever over the sawblade, the bandage should be there. This level also introduces the ''Zombie" enemies that charge at you when you get into their range. The problem with these fellows though is that they are all ramdom with their aggression range and speed so they contradict the nature of the game a lot by hindering precision tremendously. These enemies also make 5-10X physically impossible to get consistent at for how many of them you have to simultaneously.