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