The Bend The Roo'les Add-on for Kao the Kangaroo has 11 achievements worth 620 gamerscore.
Complete Waterfall Islands (Easy Mode)
Complete Waterfall Islands (Hard Mode)
Complete Volcano Peaks (Easy Mode)
Complete Volcano Peaks (Hard Mode)
Complete Forsaken Monastery (Easy Mode)
Complete Forsaken Monastery (Hard Mode)
Complete Twisted Hideout (Easy Mode)
Complete Twisted Hideout (Hard Mode)
Defeat the Crab King
Collect every diamond in the DLC
Find the Frozen Pirate from Kao 2