ACHIEVEMENT - HOW TO UNLOCK Bunker Buster - Complete world 3. Burst Friends - Defeat 5 enemies in a single Rocket Burst or Drill attack. City Saviour - Complete world 1. Devotindos Defiler - Completed Arcade Mode on Hard. Elhorn Tourist - Completed all stages. Ferocious Flier - Completed 1.2 having defeated all enemies. Impatient Hero - Completed all stages below par time. Legendary Possum - Completed gold sparkster mode. Nimble Knight - Completed 3.2 without taking damage. Redoubtable Runner - Completed Arcade Mode on Hard within 60 minutes. Return of the Rocket Knights - Complete world 4. Spark Dog Millionaire - Completed Arcade Mode scoring 1,000,000 or more. Wolf Connoisseur - Completed 2.1 having collected all pickups. Wolf Kingdom Conqueror - Complete world 2. Woodland Bouncer - Defeat 3 enemies with a single reflected projectile. Zephyrus Saviour - Completed Arcade Mode on Normal.