101Leafy researched the games.
Hard Bone Lance+

Lance made with superior quality bone. Widely admired for it rough exterior.
| Class | Lance |
|---|---|
| Rarity | 6 |
| Attack | 483 |
| Slots | 1 |
| Price | 35,000z |
Upgrades
| Upgraded from | Hard Bone Lance |
|---|---|
| Upgrades into | Barbarian Tusk, Demon Lance, Full Voltage |
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 748.