Eastern Bamboo Forest - 3

Strategy
Play the other levels until you have level 14 or more. Then, choose any of your friends' birds which are in your same level or more and have Red in Samurai, Chuck in Lightning Bird and Matilda in Druid or Red in Samurai, any of your friends' birds which are in your same level or more and have Chuck in Lightning Bird and Matilda in Druid or Red in Samurai, Chuck in Lightning Bird and any of your friends' birds which are in your same level or more and have Matilda in Druid. In all three choices of choosing birds, if you're choosing Red with a stunning weapon, that will be better. Then attack with Red, use Chuck's secondary skill on Red and heal the birds with Matilda. Use the Rage Chili on Chuck when it is full. Repeat this over until you win or either lose.

In Summary
This boss is no joke and can be a pain. It is best to level up from defeating other enemies first before attempting this stage.