Combine two identical NFTs to increase their star level. Enhanced NFTs gain score multipliers for leaderboard competition.

How to Upgrade

1. Go to Inventory → Upgrade
2. Select 2 NFTs with same grade, level
3. Click Upgrade and confirm transaction
4. Success → 1 higher-star NFT Fail → 1 NFT destroyed

Requirements

• Target: Any grade NFT
• Condition: Same grade + same level
• Material: 2 NFTs → 1 higher-star NFT
• Max Level: 10★ (requires 1,024 base NFTs)

Upgrade Rates