Board Thread:Questions and Answers/@comment-27148645-20151125234418/@comment-8777966-20151126031307

Step One - Collect ALL of the superior treasures from Chapter 1, Chapter 2, and up to where you are currently in Chapter 3.

Step Two - Use the XP to upgrade your Basic Cats(The Ones you unlocked at the beginning of the game) to Lv20, then upgrade all of the Cat Base Upgrades to Lv20(The Blue Ones).

Step Three - Use any Leftover on Valkyrie, then if there is still more, put it on White Rabbit and Death Moon.

Step Four - Continue to complete Chapter Three, and make sure to collect superior treasures as you go.