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