Here is the full list of all 30 Bone's Cafe achievements.
Get 3 Skulls rating in all challenges.
Amass 100,000 coins.
Unlock all the cafe themes.
Complete the game serving only vegan dishes.
Serve 500 dishes in a day.
Serve 1000 dishes in a day.
Kill 50 customers in a day.
Earn the 5 SKULL Rating.
Kill 1 each of the 9 types of customers in a day.
Discover all the recipes.
Earn the 4 SKULL Rating.
Served 100 customers in a row.
Discover 50 recipes.
Spend 10,000 coins in the shop.
Discover 30 recipes.
Earn the 3 SKULL Rating.
Summon 20 minions.
Served 50 customers in a row.
Earn the 2 SKULL Rating.
Summon 10 minions.
Discover 10 recipes.
Earn the 1 SKULL Rating.
Served 25 customers in a row.
Summon 5 minions.
Served 10 customers in a row.
Discover a recipe.
Served 5 customers in a row.
Summon your first minion.
Complete the tutorial.
Kill a customer.