Rocket Knight
All skins
At the “Press Start” screen, press Up(2), Down(2), Left, Right, Left, Right, B, A(2) to unlock all skins at the “Unlockables” menu. If you entered the code correctly, you will hear a sound.
Bonus skins
Successfully complete the indicated task to unlock the corresponding skin:
- Axel Gear: Successfully complete Arcade mode on the Hard difficulty, using the secret damage move on every Boss.
- Gold Sparkster: Successfully complete Gold Sparkster mode.
Secret damage moves
Damage the following Bosses with the indicated technique. If done correctly, you will hear a sound. Defeat the boss, and the next level will then be in Hard mode.
- Axel Gear: Have him get hit by the tracking purple ball attack that he uses.
- Wolf King: Wait for him to stand on top of a breakable floor block. Hit him until laughs, then drill attack the floor so he falls.
- Wolf Robot: Reflect his dynamite back at his face.
Gold Sparkster mode
Successfully complete Arcade mode on the Hard difficulty, using the secret damage move on every Boss.
Achievements
Accomplish the indicated achievement to get the corresponding number of Gamerscore points:
- Elhorn Tourist (30 points): Completed all stages.
- Zephyrus Saviour (35 points): Completed Arcade Mode on Normal.
- Devotindos Defiler (25 points): Completed Arcade Mode on Hard in a Single Playthrough.
- Legendary Possum (20 points): Completed Gold Sparkster Mode.
- Impatient Hero (20 points): Completed all stages below par time.
- Spark Dog Millionaire (15 points): Completed Arcade Mode scoring 1,000,000 or more.
- Redoubtable Runner (15 points): Completed Arcade Mode on Hard within 60 minutes.
- Ferocious Flier (10 points): Completed 1.2 having defeated all enemies.
- Wolf Connoisseur (10 points): Completed 2.1 having collected all pickups.
- Nimble Knight (10 points): Completed 3.2 without taking damage.
- Burst Friends (5 points): Defeat 5 enemies in a single Rocket Burst or Drill attack.
- Woodland Bouncer (5 points): Defeat 3 enemies with a single reflected projectile.