Ok... played it on a diff PC, and it didn't crash there (not sure what is up with mine. older vid card maybe), but I finally got a chance to play through the whole thing!! MY GOSH... I'm completely blown away by the amount of content you managed to cram in here. :O :O Absolutely mind blowing. And the entire concept is so incredible. It was so much fun seeing all the characters running around in the end. SO well done.
If I had minor nitpicky feedback... it might be to make the cat coll prim just a tad larger, so when you play as the cat, the camera doesn't clip into the objects as much.
And... I definitely had trouble as the mom... I knew where the extinguisher was.. but climbing on the top of the door like a cat, (but as the mom), felt super goofy. At the same time... this added to the humor watching her jump around trying to get the thing at the end. LOL
I loved all the diff music choices for each character too. So good.