Complete the indicated task to unlock the achievement.

Achievement	How to unlock
2 Stones 1 Bird	Attempt a level 25 times.
Battle Hardened	Beat 5 levels without dying.
Beat Level One	Beat the first level
Cloud Nine	Level 25, ride a cloud.
Completely Completed	Complete all the levels.
Controls Reversed	Beat level 4 with controls reversed.
Death is my friend!	Die 50 times.
Eat My Dust	Beat the first boss.
For Debugging Only!	Find and complete the secret ending.
God Like	Kill 50 enemies.
I Am > Than Mechs	Beat the second boss.
Killing Spree	Kill 25 enemies.
Living On a Prayer	Beat half the levels.
Never Surrender!	Attempt a level 10 times.
New Perspective	Level 29, play as a scroll.
No credit card required	Unlock something.
Off to the Slammer	Level 11, go to "prison".
Oops! Yea that's a bug.	Level 19, crash the game.
Play Pong!	Play Pong in the game.
Seppuku	Kill yourself with your own weapon.
Smiley	Level 9, see a smiley face.
Spontaneous Combustion	Explode 50 times
Stop breaking the game.	Complete 10 secrets.
Teachers Pet	Beat a level with an A+ time.
The Collector	Collect 15 Collectables.
The Legend	Beat 10 levels without dying.
Who's Laughing Now	Beat the third boss.
You fell for it!	Fall for it on level two.
You have found a bug.	Complete one secret.
You're good at dying.	Die 100 times.