Here is the full list of all 30 SEUM: Speedrunners from Hell achievements.
Play SEUM more then 66 hours.
We salute you! \m/
Hell Yeah! Now you can sleep.
Gotta catch 'em all.
High pitched story.
Be alive longer then 6 minutes.
Perform eight rituals.
Win 10 peaks.
Worship the Satan.
Finished 100% of the game... or did you?
Return all yours beers.
Run 666m in the Endless Mode.
Play Endless mode 66 times.
Set your mouse on fire!
Die 666 times.
Top a friends score on the Leaderboard.
Master of all four powers.
Complete one Heliku.
Best of the best.
Perform Butt First on one level.
Perform head-banging.
Finish one zone in Speedrun mode
Get killed by everything.
Retry 666 times.
Set balerina score on one level, and be fabulous.
Jump 666 times.
Shoot fireball 666 times.
Finish level in exactly 6.6 seconds.
Just keep swimming.
Get the "Über Skull" time on one level.