# Mystery Box System

When the quantity of cups reaches 10,  users will get a random Mystery Box. The factor which affects the quality of Mystery Box is the luck value of each sneaker.

When open the Mystery Box, you will need some VST as the gas fee.There will be Parts and VST inside the Mystery Box.

| Quality     | Open Time | Base Cost | Boost Cost |
| ----------- | --------- | --------- | ---------- |
| wooden box  | 1H        | 1         | 0.6        |
| bronze box  | 2H        | 1         | 1.2        |
| silver box  | 6H        | 1         | 3.6        |
| gold box    | 12H       | 1         | 7.2        |
| diamond box | 24H       | 1         | 14.4       |
