lthazar:
This is a very powerful demon that can throw fireballs very fast. Stand behind a pillar and kill the Seplavite with the crossbow. Then, activate the power Demon Leech and go in front of him. He attacks you and the action occurs in reverse. Continue this process to kill him.
How to defeat Bastados:
These two-headed demons can attack with energy balls. Do not shoot them. Just get close and smash it with repeated Right Clicks.
How to defeat Behemoth:
This is a very powerful Boss who can hit the ground and causes you to fall. He also has the ability to draw you closer to him. The weak point is the red swelling in the middle of his chest and the two red swellings on his back. Shoot it with the Dragon Breath and you will able to kill him faster. You will encounter this Boss again in Hell’s Museum and many other places. Use the same method to defeat him again.
Defeating Clavers:
These demons are very fast and attacks with a sword. When they attack do not stand in one location. Keep moving and hit them with Holy Shotgun to kill them faster.
How to defeat Gabriel;
This angel is powerful. Run to dodge her attacks and shoot her with the Dragon Breath to finish her.
Use your Dragon Breath gun to take away more life than any other gun you have.
How to defeat Impalers:
These minotaur-like demons can attack like bulls. Dodge them and hit at their backs’ green weak points with the Holy Shotgun.
How to defeat Kang-Ore:
You will meet Kang-Ore at the center of Hell’s Library. This dragon will rise up from the center of the room and breathe fire, as well as dive towards you. Run and dodge the attacks and shoot at its head to kill him.
How to defeat Mammon:
Take the dagger and kill the side demons with the Holy Shotgun. Wait for Mammon to come down and stab him. Continue this process to kill her.
How to defeat Seplavites:
These bat-dragons can fly and attack by throwing fireballs. Do not stand still. Keep moving and shoot them with any gun except the Holy Shotgun and Dragon Breath.
How to defeat the Vermin Demon Boss:
At about the end of the second level, you will find the Sangre de Dio. After you solve the puzzle to unlock the dagger, pick it up and Constantine will start talking to himself. After about five seconds, an intermission sequence will start and the Vermin Demon will start to form. When the fight starts, do not waste your bullets. Pick up the screeching beetle that is on the left wall when you enter the room, if you do not already have one. This is the only weapon that has any effect on the Demon. Throw the beetle at the demon so that it falls to the ground and takes effect faster. This will paralyze it. Then, get close to it and melee it once with your weapon. It will disintegrate. If you hit it again, the Vermin Demon will hurt you. Step back, and now you can start shooting. The Witch’s Curse gives a lot of damage. When it starts to integrate again, go to True Sight so that you can find and pick up the beetle again. Throw it again and repeat the process.
Crucifier shotgun:
When you reach the door that is at the top of the broken stairway in the alley, push the dumpster and climb over it. You will find a key. Go back to the generator room to find the Crucifier shotgun.
Solving puzzles:
Follow the notes/journal to get hints for solving the puzzles. When you are unable to find a way, press [Demon View] and find a shining circle.
Weapon recommendations:
WEAPON – DESCRIPTION
Pistol – Primary stage weapon that has minimum damage power.
Crossbow and machinegun – The only weapons with reusable ammunition.
Holy Shotgun – Most powerful weapon.
Holy Water Bombs – Not very powerful, but very effective against the nurses in the hospital level.
Bug – Stops an enemy for a moment and is reusable.