You start with 5 coins and can collect 5 coins before spending 6 coins on broccoli and upgrading running 4 times. After that, you can only collect enough coins to upgrade running once each time.
It's a cool idea, but the upgrades are too small, so there are too many repetitions to get much further. It would be better with bigger upgrades and more levels for more variety.
This game is so grindy that after I got the easy badge last time, I quit and will only be coming back to collect the BOTD each time, but I won't ever play more.
Pro tip: don't save up your items. The game isn't that long. It's a hallway of a handful of fights and a boss. Refresh stamina of the healer and heal the weakest character in the battles every turn if they have about half HP.
I don't really like the game, but I appreciate that the save file is stored online, so it even works from different computers or after the browser deleted its cookies.
At a certain point in the game you could literally open the game at the heat death of the universe and still not have killed a single monster while it was idling.
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