101Leafy researched the games.
Longhorn

Simple Lance made from a bundle of long bones. Strong guard and finishing move.
| Class | Lance |
|---|---|
| Rarity | 1 |
| Attack | 161 |
| Slots | 0 |
| Price | 650z |
Upgrades
| Upgrades into | Longhorn+, Wild Bone Lance |
|---|
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.
Materials
Sm Monster Bone ×2, Brute Bone ×1