Complete the indicated task to unlock the achievement.

Achievement	How to unlock
100 ways to die (13)	Get killed by everything.
100% (23)	Finished 100% of the game... or did you?
66 hours of Hell (54)	Play SEUM more then 66 hours.
666% (28)	Hell Yeah! Now you can sleep. (Secret)
Beat a friend (16)	Top a friends score on the Leaderboard. (Secret)
Beer Collector (23)	Return all yours beers.
Butt First (13)	Perform Butt First on one level.
Devils Time (12)	Finish level in exactly 6.6 seconds.
Endless Suffering (20)	Play Endless mode 66 times. (Secret)
Extra Sensitive (15)	Set your mouse on fire!
Find the Balls (21)	Gotta catch 'em all. (Secret)
Firestarter (11)	Shoot fireball 666 times.
Hail Satan (23)	Worship the Satan.
Hardcore Speedrunner (54)	We salute you! \m/
Heliku Master (24)	Perform eight rituals.
Hellium (24)	High pitched story. (Secret)
Live long and prosper (19)	Be alive longer then 6 minutes.
Long Distance Runner (21)	Run 666m in the Endless Mode.
One more try (13)	Retry 666 times.
RIP (20)	Die 666 times. (Secret)
Ritual performed (21)	Complete one Heliku.
Speedrunner (17)	Finish one zone in Speedrun mode
Swim Like a Fish (14)	Just keep swimming.
The Avatar (16)	Master of all four powers.
The Balerina (13)	Set balerina score on one level, and be fabulous.
The Climber (24)	Win 10 peaks.
The Headbanger (15)	Perform head-banging.
The Jumper (12)	Jump 666 times.
Top 10 (21)	Best of the best.