I decoded the save with https://www.base64decode.org/ and changed some numbers, then encode it
first, you have to go to settings and click on export. then copy the text on top. then go to https://www.base64decode.org/ and paste the text on the first box. then decode it and you should see some numbers. The first number is your level, the second number is your money. they are separated by semicolons. once you are done changing it, go to https://www.base64encode.org/ and encode it. Copy the text in the second box, then go back to the game and click import. Then paste the text and click ok.