Hi @DeagleBryan! Thank you so much for playing, for the congratulations, and for the valuable feedback!
I really appreciate you pointing out these UI/UX issues. You're completely right—fast clicking near upgrade buttons can easily trigger accidental purchases, and instantly showing menu buttons upon losing makes it too easy to skip the shop by mistake.
To clarify the game loop: after gathering coins in the clicker phase, you can use them to buy stats and upgrades (like Power, Health, and Walls) to survive the arena waves.
I'll definitely fix this in a post-jam update by adding a small delay/cooldown to end-round buttons and tweaking the layout so fast clicks won't cause accidental misclicks. Thanks again for the great insight!