Criss redshirted as a freshman at Wyoming in 2009, before transferring to Nebraska as a walk-on prior to the 2010 season.
At Creighton Prep High School, Criss helped lead the Junior Jays to an 11-1 record and a state semifinal appearance in 2008. An all-state selection as a defensive lineman, Criss tallied 37 tackles, three sacks and one interception during his senior season, while also playing on the offensive line for head coach Tom Jaworski. In 2007, Criss earned honorable-mention all-metro honors.
In addition to football, Criss also participated in basketball and track and field at Creighton Prep.