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