Instructions
Strafe-jump to the left and to the right to avoid the attacks from the snakes. The snakes shoot green blobs at Harry in an arc. The green blobs explode when they reach the ground.
Hold "L2" to aim your wand.
Aim your wand at one of the snake's head.
Press "R2" to cast a magic spell at the snake's head. Any magic spell, such as Stupify, works on the snakes. It takes five to six hits with any magic spell to destroy one of the snakes. When the snake is destroyed, it vanishes in a cloud of green mist.
Destroy the remaining snakes the same as you destroyed the first one. Once all of the snakes are defeated, Voldemort's Soul vanishes and Ron smashes the locket.