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