It is used for breaking down rocks, large rocks, and misshapen rocks. You can upgrade your tools by giving the appropriate ore and fee to Saibara at the blacksmith's shop.
You can measure your upgrade level in the tools menu. Every 100% is an upgrade and will denote the level you can upgrade to with a miniature ore icon of the appropriate level.
When the player receives the hammer, it will start at a tool level of one. The hammer can be upgraded up to a level of seven, and becomes more and more useful with every upgrade. Below is a list of upgrades that can be made to the hammer throughout the game. Upgrades are made at the Blacksmith's by Saibara.
|Tool Level||Upgrade Cost||Abilities|
|Standard Hammer (Level 1)||Hammer that you start with.||Only able to smash small boulders.|
|Copper Hammer (Level 2)||Copper Ore + 1,000G||Smash a large stone in 3 hits. Cannot smash boulders.|
|Silver Hammer (Level 3)||Silver Ore + 2,000G||Smash large stones in 2 hits, and boulders in 6 hits. Cannot smash large boulders.|
|Gold Hammer (Level 4)||Gold Ore + 3,000G||Smash large stones in 1 hit, and boulders in 3 hits. Cannot smash large boulders.|
|Mystrile Hammer (Level 5)||Mystrile Ore + 5,000G||Smash a regular boulder in 2 hits. Cannot smash large boulders.|
|Cursed Hammer (Level 6)||Find on Floor 59 of the Lake Mine||Smash boulders and large boulders in 1 hit.|
|Blessed Hammer (Level 6)||Have it equipped for 10 straight days.|
|Mythic Hammer (Level 7)||Mythic Stone + 50,000G||Smash all stones and boulders on the screen.|