Rooby is a kangaroo that is playable in Frogger 2: Swampy's Revenge.
Frogger 2: Swampy's Revenge BioEdit
"The swamp is a long way from the outback but it still has its own resident 'roo. A silly, easy-going type who can hop as good as any frog. She's happy to lend a paw in rescuing the babies or join in for the multiplayer fun." 
- Despite being listed as female, all of Rooby's dialouge has his voice being male.