I currently have 198 treats and all I have left to buy is the Burns monster. I haven't purchased any premium items or created any extra games to get treats. It is totally possible to obtain all of the items before Halloween.
I do have 100 friends that have cemeteries and have been only collecting when I have a chance to gain treats from them. I also keep Homer and Devil Flanders doing 60m tasks to earn treats. I was getting more treats TPing and egging other peoples homes, but lately it seems I only get one treat every 10 times or so.
