There are a lot of ways to exploit mechanics in the Dark Souls games that can make them significantly less challenging. The simplest being just retreating from a tough enemy till it reaches its leash boundary and get in easy hits when it starts heading back to its start location.
There are also a lot of exploits that can make many boss fights ridiculously easy, one example being the Hydra in darkroot basin, when you get close enough that it stops using its ranged attack there is a place in the watervin front if it hear the corpse with the Knight armor where you can stand and it will never hit you. You can either hit it with arrows or spells without worry or head out to attack its heads after each attack, so long as you make it back to the safe zone before it's next attack you'll never be in any danger.
There are also a lot of exploits that can make many boss fights ridiculously easy, one example being the Hydra in darkroot basin, when you get close enough that it stops using its ranged attack there is a place in the watervin front if it hear the corpse with the Knight armor where you can stand and it will never hit you. You can either hit it with arrows or spells without worry or head out to attack its heads after each attack, so long as you make it back to the safe zone before it's next attack you'll never be in any danger.