Here is the full list of all 11 Zombie Pinball achievements.
Obtain more than 100.000.000 points on any table
Unlock all tables
Complete the 'Little Pirate' table
Complete the 'Hard Rocker' table
Complete the 'Mad Scientist' table
Complete the 'Hellfire' table
Complete the 'Acid Mutation' table
Complete the 'Frankenstein' table
Complete the 'Werewolf' table
Complete all challenges
Achieve 10 skillshots