The Refresh level doesn't work for me. I refreshed my browser using the symbol at the top left of my screen and when it finishes I have to start the game from the beginning again. Up until here everything was excellent.
You should also make the max lvl higher than 50 so you can max out. But that would unbalance the whole game, so also come up with a way to keep lower lvls alive. I hope that made sense, just trying to help!
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