Thanks for the feedback! I about buying the upgrades, it is intentional that it only lasts for the first minigame (I added that info in the description just now). Also the main reason I made the goal $15,000 because I thought it was very challenging but also doable, and I wanted the player to play a lot of times and learn to eventually reach that mark. Sorry if it was too high. But thank you for all the input you provided, it helps a lot.