101Leafy researched the games.
Velociprey Balloon

Made of common Velociprey parts. Basic and easy to use, it's a popular model.
| Class | Hunting Horn |
|---|---|
| Rarity | 6 |
| Attack | 988 |
| Slots | 3 |
| Price | 30,000z |
Upgrades
| Upgraded from | Giaprey Balloon+ |
|---|---|
| Upgrades into | Velociprey Balloon+ |
Can also be made new at the smithy.
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 736.
Materials
Velociprey Scle+ ×8, Velociprey Hide ×15, Screamer ×3, Hrd Monster Bone ×3