Ripper Roo

Ripper Roo is an insane blue mutated kangaroo, though both his head and face closely resemble a dog. He is considered to be Dr. Cortex's first and failed experiment with the Evolvo Ray, which is debatable seeing as how he managed to complete university-level education as of Crash Bandicoot 2: Cortex Strikes Back.

Trivia

 * His appearances in the Stephen Squirrelsky and Friends' Movie Spoof Travels are in The Secret of NIMH where he tries to help Lucifer pursue the heroes, but fails when he falls down the waterfall, then will even be in more movie spoof travels.