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