speaking of new NPCs...I think an easy and potentially cool one could be deadman during the graveyard stage...probably only need one sprite and have him transparent and float around and he could posses random enemies and then the enemy will attack a random enemy. I guess it would work like the telepathy power in MIW where whatever enemy is effected attacks one random enemy for one attack. in this case it would just be deadman floating around and randomly attaches to one of the enemies and make them attack another bad guy for one attack