Each upgrade makes one of the Runner's Items more powerful or increases the number of Rings your Runner starts a battle with. You also earn XP with each upgrade which is used to fill your XP bar and increase your Player Level.
Articles in this section
- How does matchmaking work?
- How do Seasons work?
- What are tiers?
- What are Trophies, and how do I win them?
- How can I get new runners?
- Why have I stopped receiving battle chests?
- What do I earn by increasing my Player Level?
- Why should I upgrade my runners
- What are items, and how do I use them?
- How is each runner different?