Thank you so much for the amazing and detailed feedback! We put a lot of heart into crafting that depressing 4 AM empty casino atmosphere and the satirical posters, so reading your compliments on the art, mood, and tutorial arrow means a lot to us!
Regarding the upgrade tree: you actually reach it automatically as soon as you use all 3 of your starting spins! Once your spins hit 0, the game smoothly transitions directly to the upgrade screen, where you can buy upgrades (extra spins, luck, payout multipliers) or manage your debt.
If you give it another quick try and finish all 3 spins, you’ll be able to experience the full upgrade tree and game loop! Thanks again for playing and for the awesome review! 🎰✨