Talk:Snow Queen Eva/@comment-49.149.151.31-20150405024656/@comment-26258826-20150405235912

The BB gauge has to have reached level 10/10. This can be done by fusing units with a green BBUP?! Underneath. Burst frogs are the best way to do this because they have guaranteed chance of leveling up your brave burst.

So, just tell your friend to hurry up and level up Eva's BB.