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