South Park: The Stick of Truth -
Use the probe to get to the vent shaft in the ceiling, as depicted at the screenshot. A big rat is inside, but you can easily get rid of it, if you hit the trap while the rat is charging at you. Step forth a little bit to lure it and then go back and trigger the trap. Then, shoot the wires to knock down the lamp, which you can use to get down on the ground. Once there, head to the basement. There, after a short cut-scene you will have to fight zombie gingers. The two with shields are vulnerable to fire, while the main opponent, to holy damage. Remember that the guy's minions have shields, so first knock these off with basic attacks. Note also that dead zombies go back to life in two turns, so try to kill them all at approximately the same time, preferably in one turn, by using area damage. When you win the fight, go through the door, which is farther in the basement.