i had a few things wrong on first comment:flush toilet after clogging toilet,grab hair-dryer and he comes in and slips,after you plug in the hair dryer turn on the farthest faucet away from screen(back one)then electrocute that sink
LAST PART:close door,get toilet paper and flood toilet,next fill up all sinks,open right cabinet and he'll slip on water from toilet,plug in hair dryer you find in the cabinet,use the hair dryer on farthest sink away it'll electrocute the left cabinet open,press on gun,the monster flys up,shoot the monster to death,then whack him he'll still be alive after 1st whack,whack him again,monster dies Enjoy =)