Looks like upgrade costs are bugged. Perhaps it is the reporting of the cost on the screen, but some cats next to draco snugglewing will actually drop in price a bit after some upgrades. Perhaps normal upgrade is not linear also.
Nice job. much more interesting balance. but yes coming from world55+ bonus seems small. no biggie.
I do notice so far that the equip is more balanced. you really need to keep all levels up vs the last version.
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