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