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