Thank you for playing. Yes, you cannot spam shooting. The Yellow power up increases fire rate incrementally. And, you dont have to click every time to shoot. When you release your left mouse from aiming(left click hold), it empties all the balls you have (you can see the amount of balls you have below your character) or until you left click again (cancel shooting). This was intentional to prevent people from just spamming since that would make it too easy. So, in the event that you spam left click, it will just alternate between shooting and cancelling which would give it the wig out feeling.
Viewing post in Finite Voyage jam comments
Hey, thanks for replying to explain :)
I went and revisited the game after reading this and I guess I see the idea? The game can be beaten indefinitely by shooting the wall next to the player, not moving the mouse at all and just clicking every few seconds. The balls just bounce side-to-side and wipe out anything on the screen as they spawn in.
I did not notice the ammo counter because it is not visible when playing the game full-screen.