Here is the full list of all 17 Oh My Godheads achievements.
Unlock all other achievements.
Win 500 points between all game modes.
Die 500 times from pie explosions.
Play 100 trials.
Kill 100 rivals with the jump attack.
Get a gold emblem in 20 trials.
Deflect 10 pies.
Play a match longer than 10 minutes.
Win alone with a perfect score against 3 CPU enemies.
Win a match that lasts less than 5 seconds.
Throw 99 explosive pies.
Complete 20 trials.
Kill 10 enemies with Zeus.
Kill 4 rivals in 5 seconds.
Create 4 user profiles.
Check each page of the stats screen.
Get a gold emblem in any of the trials.