1. Select one of the skins in your inventory on the left menu (or use pizza points) to upgrade it and get the desired or more expensive one.

2. Pick the desired skin on the right menu browsing the suggested ones or using sorting.

3. Successful upgrade’s chance depends on the output-input ratio and varies from 1 to 70%. When unsuccessful, you lose your input item/balance but you always get consolation skin! Good luck!