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@dmsral
Wait until you upgrade from level 14 to level 15! Example: For Bumblebee, it’s 250,000 coins, 12 gears, 10 chips and 5 rareiums, plus the upgrade takes 3 days!!! however, if you play the strategies in the main discussion thread, you’ll have plenty of coins to spare. I’m currently upgrading to rank 289 and I have almost 2,000,000 coins, plus the surplus grows by about 100,000 coins on each rank increase.