Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Air Dash	Collect the Air Dash Power Orb.
Beat Catacombs	Defeat the Hopper Boss in the Catacombs.
Beat Caverns	Defeat the Dragon Boss in the Caverns.
Beat Keep	Defeat the Space Alien Lord in the Keep.
Beat Library	Defeat the Floater Boss in the Library.
Beat Watchtower	Defeat the Lander Boss in the Watchtower.
Blocked View	Complete the game without destroying all of the Space Aliens (Normal Ending)
Cartographer	Collect all the Castle Maps.
Charge	Collect the Charge Power Orb.
Compass	Collect the Compass Power Orb.
Defense Maxed	Collect all the Defense Up Power Orbs.
Destroy Space Aliens	Destroy all of the Space Aliens (Best Ending)
Down+Up+Jump	Collect the Down Up Jump Power Orb.
Early Escape	Sequence break out of the first segment of the game.
Empty Ledge	Give in to Vengeance (Worst Ending)
Feathered Vest	Collect the Feathered Vest Power Orb.
First Encounter	Triumph against a Boss Space Alien for the first time.
Health Maxed	Collect all the Health Up Power Orbs.
Heavy Anklet	Collect the Heavy Anklet Power Orb.
Kill the Animals	Eliminate the baby space aliens during the final game sequence.
Low Percent	Finish the game (Best Ending) without collecting Health, Damage, or Defense Ups.
Number Vision	Collect the Number Vision Power Orb.
Orbiter	Collect the Orbiter Power Orb.
Power Maxed	Collect all the Damage Up Power Orbs.
Rocket Booster	Collect the Rocket Booster Power Orb.
Rocket Fuel	Collect the Rocket Fuel Power Orb.
Speed Runner	Finish the game (Best Ending) in under 2 hours.
Speed Shoes	Collect the Speed Shoes Power Orb.
Sticky Grip	Collect the Sticky Grip Power Orb.
Storyteller	Collect all of the Journal Entries.