101Leafy researched the games.
Tiger Arrow II

Dreadful Bow made from sharp, yet flexible Tigrex materials. Overwhelming.
| Class | Bow |
|---|---|
| Rarity | 4 |
| Attack | 276 |
| Affinity | -30% |
| Slots | 0 |
| Price | 10,000z |
Upgrades
| Upgraded from | Tiger Arrow I |
|---|---|
| Upgrades into | Tigrex Whisker, Hidden Bow |
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 800.