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