Here is the full list of all 40 Magic Potion Millionaire achievements.
Collected material from a material object.
Used a warp gate.
Offered money at an altar.
Deflected an enemy projectile.
Damage an enemy with a bubbly.
Destroy a trap.
Resist a status effect.
Defeat a boss.
Stomp on a boss to defeat it.
Defeat all bosses.
Acquire 1,000 scrap.
Acquire 999,999,999 money.
Obtain grade 2 ammunition.
Obtain grade 3 ammunition.
Obtain all kinds of materials.
Obtain more materials than you can carry back.
Obtain all of the maps.
Obtain all of the references.
Obtain all of the artifacts.
Maximize friendships with all of the customers.
Reach a melee attack multiplier of 100.
Reach a water gun attack multiplier of 30.
Master Life Potion.
Master Cure Potion.
Master Explosive.
Master Bubbly.
Master warp portal.
Master STR Potion.
Master DEX Potion.
Master VIT Potion.
Clear the tutorial.
Clear all floors on the Aquamarine Lake.
Clear all floors on the Emerald Hill.
Clear all floors on Mt. Ruby.
Clear all floors in the Amber Cave.
Clear all floors in the Marble Forest.
Clear all floors in the Obsidian Prohibited Area.
Reach ending 1.
Reach ending 2.
Reach ending 3.