The fight begins when hitting the demon-possessed child.
To beat him you will have to break the lamp that is on the table in the center of the room.
The fire that comes out of the broken lamp takes the direction in which you are. You must harm the demon-possessed child by directing that fire towards him.
When you give him twice the bed will rise. You must do the same, direct the fire of the lamp to hit the child with it.
When you damage it twice more, the bed will move from left to right and the child will throw a blue fireball that will chase you.
You must make the blue fire bounce in the mirror of the room so that it goes towards the child and damages him.
After a few blows the demon-possessed child will be defeated and you will be able to take the crucifix.

The fight begins when hitting the coffin.
In a first phase you must kill 25 demons with the mangual. You will have to dodge the dogs that run towards you, some ducking and others jumping.
Afterwards, the King of Evil will move around the screen and throw you bats that you will have to dodge. You will only be able to harm him when he is placed on the casket. You must shoot him with the blunderbuss. Throughout this phase you will have to keep dodging the dogs that run towards you.
After a few shots the King will flee.

The fight will begin when you drink from the chalice. You must crouch in the free space.
You will have to defeat this enemy quickly because during the fight you will lose energy little by little.
The enemy will appear in different points of the screen, you only have to hit him with the mangual. When you do it, it will throw energy balls that you will have to avoid.

The fight begins when you advance towards the high altar.
To defeat this enemy you must eliminate the three portals that appear on the windows.
The best strategy is to start by defeating the portal on the left. Climb one of the platforms and shoot him with the blunderbuss 30 times. Do not worry about the enemies that will appear below or those above.
When you defeat this portal, go to the right avoiding enemies. Shoot the center portal five times for a lightning strike. You must quickly remove yourself from the platform so that the beam does not reach you and damage the portal on the right. Repeat this several times. In this part you will have to be careful with the enemies above. You must eliminate them to avoid kidnapping the priest who protects the chalice. It is advisable that you also eliminate the demons below. Rats can kill them with the mangual or dodge and kill them later.
When only the central portal is left, you will have to hit him with the mangual. But you can only hurt him when he grows up. The best place to hurt him is to place your head on the lectern of the high altar. Do not forget to keep eliminating the enemies above.
Even if you end up with the three portals, the battle will not end until you defeat all the enemies below.

The fight starts when you try to talk to the werewolf. To hurt him you must catch several silver butterflies. When the enemy is unprotected, you must hit him with the mangual to stop him from hiding in the rocks and hit him again in the bottom. Repeat the same operation until you finish it.