Kao the Kangaroo: Round 2 (Polish: Kangurek Kao: Runda 2) is an action-adventure video game developed by Tate Interactive and a sequel to Kao the Kangaroo. It was originally released on the PC in Poland in November 2003 by Cenega and was later released in other European territories on PC and consoles in 2005 by JoWooD Productions and in the US in 2006 by Atari. A remake titled Kao Challengers was released for the PlayStation Portable in 2005/2006 and a new title called Kao: Mystery of the Volcano was released for the PC in 2005.