101Leafy researched the games.
Lobster Hammer

Made from a lobster shell. Like its material, it increases Water element.
| Class | Hammer |
|---|---|
| Rarity | 6 |
| Attack | 936 |
| Water | 200 |
| Slots | 1 |
| Price | 30,000z |
Upgrades
| Upgraded from | Hard Bone Hammer |
|---|---|
| Upgrades into | King Lobster Hammer |
Upgrade tree from モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 722.