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