Full list of all 26 Kao the Kangaroo achievements.
The base game contains 15 achievements, and there is 1 DLC pack containing 11 achievements.
Defeat one of the Bosses without receiving any damage
Unlock all extra heart slots
Wear an outfit from Kao 3
Find and complete all of the Eternal Wells
Have 20 lives in total
Finish the game
Beat the Eternal Warrior
Collect All Eternal Runes
Collect KAO letters on all Levels
Collect all Kaopedia entries about Foes
Defeat the Oldest One
Defeat the Jayabaya
Defeat 5 enemies at once with finisher
Find and defeat the Terror
Complete a tutorial with Walt
Complete Twisted Hideout (Hard Mode)
Collect every diamond in the Bend the Roo'les
Complete Forsaken Monastery (Hard Mode)
Complete Volcano Peaks (Hard Mode)
Complete Waterfall Islands (Hard Mode)
Defeat the Crab King
Find the Frozen Pirate from Kao 2
Complete Twisted Hideout (Easy Mode)
Complete Forsaken Monastery (Easy Mode)
Complete Volcano Peaks (Easy Mode)
Complete Waterfall Islands (Easy Mode)