Board Thread:Game Discussion/@comment-10068656-20130615194933/@comment-10822880-20130615200517

I'm interested to know too. I have virtually identical stats to you at present and only see up to WJ L2 as well. Based on previous episodes I think unlocking the higher reward bosses is based on your use of energon cubes; I rarely play more than one, and never see high bosses even though I always finish between 1,000 and 4,000 in the rankings. I progress quickly at the start as my deck (12000ish) defeats all the starter bosses with one cube, but never progress more than 60M bosses as I play fairly conservatively and prioritise helping others take own their higher ranked bosses. Just a theory though!!!