and when you place Mr. Black it says WHAT HAVE YOU DONE, implying that you have unleashed him.
Viewing post in Incredibox: Sprunki [2013] comments
then why did he hang raddy and rip oren's ribcage open? and gray is clearly freaking out because people are dying, and they all seem to be just fine in phase 1, and we know black didn't kill pinki but rather left her seared in pain from her face being ripped off. and wenda's eyes and mouth being replaced with a meat texture probably means she was turned into a psycho-killer as usual and blood and gore is all she can think about which probably makes her he killer.