Chapter Five is all about Captain Bell's booby-trapped tunnel. One of the traps is, of course, the classic spear that comes flying out of the wall. The best way to avoid these is to keep walking, and jumping while letting them pass under you.
Pinballs won't move until you hit them, then the'll continue moving back and forth in the direction that you hit it. You can't kill these guys; you can only let them pass under you while you jump.
Pirate Ghouls are just like Dimhags; you'll need a mirror to kill them.
Steak and Dagger
The Steaks will be found in this chapter, and the Daggers(which move faster) in a later chapter. They stab up through the ground and then retreat to move to another place in the room to stab there. You can't kill them, but you can jump to avoid them.
One hit from these puppies and you're dead! They roll back and forth for the entire length of the room(except for the red one which only goes the length of the screen). You can stall them for a second by hitting them, but you can't kill them.