Here is the full list of all 16 All Zombies Must Die: Scorepocalypse achievements.
Achieve a Gold Medal on Mall
Achieve a Silver Medal on Graveyard
Achieve a Silver Medal on Mall
Achieve a Bronze Medal on Graveyard
Achieve a Gold Medal on Suburbia
Achieve a Silver Medal on Suburbia
Achieve a Bronze Medal on Suburbia
Achieve a Gold Medal on Town Square
Achieve a Silver Medal on Town Square
Achieve a Bronze Medal on Mall
Achieve a Bronze Medal on Town Square
Beat the developer at their own game on Town Square!
Beat the developer at their own game on Mall!
Beat the developer at their own game on Suburbia!
Achieve a Gold Medal on Graveyard
Beat the developer at their own game on Graveyard!