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