watch 01:48 The Loop (TV) Do you like this video? Mystery Pizza Challenge is an episode of Lunchtime with Smosh released May 16, 2016. To celebrate the release of TMNT2, Ian and Anthony bring Olivia and Shayne on. They all dress up in TMNT hoodies and masks and do a mystery pizza challenge. Retrieved from "https://smosh.fandom.com/wiki/Mystery_Pizza_Challenge?oldid=157106" Categories: Live Videos Lunchtime w/ Smosh Smosh 2nd Channel Community content is available under CC-BY-SA unless otherwise noted.