Satan | Boss Battles Castlevania: LoS 2 Guide
Last update: 11 May 2016
The final boss of the game is a major disappointment if you were looking for any decent challenge. Most of his attacks are unblockable, but he executes them so slowly (and signals the usage of some of them, giving you even more time to react) that they pose no real threat. After fighting with Zobek, this one will really be a child's play.
Again, the most effective tactic is hit & run - get close to him, smack him a few times and jump back. No point in flooding him with your attacks, as he can (and will) block most of them after getting hit a few times. Sometimes the boss will use "an invisible attack" - a black cloud will appear beside him and he will disappear for a brief moment, to reappear near you and attack. It sounds dangerous, but with a little bit of timing you shouldn't have any problems avoiding this attack.
Despite the fact that Satan's attacks are slow, they deal large amounts of damage, so if you generally have a hard time avoiding or blocking enemies, you should consider preparing yourself for that battle by buying all the relics, which may come in handy.
Each time you drop his health down to a certain amount, a scene will initiate and the boss will attack you with ranged attacks for afar. The system works in a similar manner to that of Paladin's - a symbol will appear under your feet and after a short while the place marked by it will explode. The difference is that Satan's explosions occur much faster and there's a black grease-like substance left on the ground for a few seconds, which will damage you upon contact. Avoid standing in the marked places (try to dodge to the side at the last moment) and after a few shots the boss will reappear and the fight will continue.
Satan will "activate" this power a few more times during the encounter, but dodging them isn't really a big problem. Bring his health down to zero to activate a final scene, which will end the fight and the whole game.