Press the green flag. Click on the middle of game tiles to access the shop. Scroll through the shop to see the upgrades. Information on them is listed, too. So far, you have infinite of everything, and the shop only works for orange, yellow, green, and pinkish tiles.
Thanks to the following: @benapple123 @Juliadonut Chrome Music Lab Online Sequencer The Catan board game series Paper Mario: The Origami King Stardew Valley April fools day
