Board Thread:Questions and Answers/@comment-74.100.204.11-20150122005119/@comment-24659969-20150226023209

Base abilities or also called as base upgrades, by maxed here means it have maxed XP upgrade level and maxed +levels as well; there are cat cannon power, cat cannon recharge, accounting, and many more. The best option would be to max everything of course. So any kind of upgrade ball you got after that can be turned into rare tickets