I found a bug where I got all my collected toys doubled and payed out twice on the completion of all ten rooms.
That may just be the first time around when you get to the tenth room; another reason would be that one of the upgrades, "Heavy Drop" says something along the lines of ensuring that every pinata will get a chance to drop at least 2 toys.
Here's a screenshot of my first time clearing out room 10, did the same thing, but never again afterwards
Although whose to say? I'm not even the developer of the game I am just a consumer ¯\\(ツ)/¯
