Knights in armour. These enemies just wander around. If attacked (e.g. by sword), they will come after the player.
hooded ghosts that can be damaged. They attack by revealing their true form when they come close contact, which makes them invincible while they are in that form.
These enemies constrict around the players, draining health unless they are shook off (moving the direction pads quickly.)
Small fire-breathing dragons.