Darkwing Bat

The Darkwing Bat is in the inverted Clock Tower. It doesn't deserve to be in the game. The only useful attack it has is flapping its wings which creates enough wind to keep you away and push you into the wall. It also charges at you, but it is very predictable in doing so and thus it is very easily avoided. My favorite sub-weapon, the Holy Water, won't work very well since it flies, but if you need to use subweapons, you're quite an accomplished player for having survived this long.. Just whack it.