Here is the full list of all 23 Diabolical achievements.
Victory goes to your enemies.
Start a relationship with The Count or Countess.
He looks the part.
What sort of villain are you?
Whatever Arachnus did to Earth, it's been undone.
Learn the Count or Countess's secret.
Reunite with an old...friend?
Zombies? No problem.
Cyber-attacks are the way of the future.
Begin your supervillain career.
Some crimes can be ignored.
A little insanity never hurt anyone.
Have you considered a career in mad science?
Start a relationship with Steelheart.
Every villain wants to do this, right?
At last, you'll receive the recognition you deserve.
Who says a villain can't have noble goals?
Let's see if people really want freedom from the law.
They'll never forget you if they always see you.
Cartoons are wonderful.
No one has enough responsibility to handle this.
Life wouldn't be worth living without them.
Power like that isn't worth messing with.