Thank you for playing and noticing that! I don't think I made it very clear without a proper UI to tell you what's happening lol.
I'm very excited to see what I can create on Game maker, it's incredible!
I really appreciate the video review, helps me see the game from other perspectives.
The prices in the shop should definitely have been lowered, I've updated the game on my end with better prices and I'd like to add more items too. In case you wanted to test the other items, if you click the right coin in the shop, you'll get 1000 coins, was one of my secrets lol.