Upgrading is using skill points to improve an aspect of a character. This can include things like stats, attacks, and more. You can normally upgrade a character to 15/15/15, unless you have the 50/50/50 Pass. Some characters (including Annencio and Punk Knight) have upgrades that do nothing. Certain characters gain special abilities/traits when upgraded to 15/15/15 or 50/50/50. You can't upgrade secret characters (Indicated by the orange surrounding) unless you have the Pass allowing you to upgrade secret characters.
Here is a step-by-step picture guide to show you how.
- To upgrade you must first buy skill points (SP), or earn them by leveling up.
- Once you have SP click the "Upgrade" tab under the "Shop" tab.
- After you do that you then select a character which you want to upgrade. Any characters with an orange box around them are unable to be upgraded unless you have the Pass.
- Now select which part of the character you wish to upgrade. (15 is the upgrade cap unless you have the 50 skill cap Pass)