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