(adsbygoogle = window.adsbygoogle || []).push({}); This was weird and I think that it was a glitch. My friends and I were playing online and I think we were on level 21. Then all of a sudden we keep hearing instan kill being said over and over. It eventually stoped but then when I was about to kill the last zombie it said it again. I don't know how this happened so leave what you think.

Its a common glitch that causes things to be repeated. This can hapen to all of the power ups and even the things that the characters say.