Bit late, but what a nice game! I barricaded the door for 1 minute using pillows and random trash like toasters, and then hid in the garage barricading it, Then he just unleashes some hulk smash move and breaks through all of it.
Add a PSG-1, a SMAW (basically a heat seaking rocket launcher). And finally please add drinks that the ragdoll can drink that you can put poison in please.