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