Here is the full list of all 30 Eastward achievements.
Collect every single Pixball.
Upgrade your bomb and ammo boxes to their maximum capacities.
Complete the true ending in Earth Born.
Collect at least 1 of every type of Pixball.
Defeat the Demon King in Earth Born.
Obtain 1,000 salt from off a Salt Bug.
Open all the treasure boxes in the game.
Eat every food item in the game.
Collect every recipe in the game.
Reach max hearts.
Complete the game.
Complete Chapter 7.
Upgrade all weapons to their max levels.
Collect every ingredient in the game.
Upgrade your backpack to its maximum capacity.
Try all five jobs with John.
Complete Chapter 6.
Complete Chapter 5.
Complete Chapter 4.
Complete Chapter 3.
Obtain a "heart" from the people of New Dam City.
Learn all of Sam's abilities.
Defeat an enemy using clutter from off the ground.
Interact with 100 different NPCs.
Interact with 50 different NPCs.
Complete Chapter 2.
Complete Chapter 1.
Defeat an enemy while it's being controlled by Sam.
Cook your first dish.
Obtain a Pixball.