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