Thanks! Both. The first upgrades are mostly power, fire rate and a bigger bag, but the PC also sells new slingshots, like a repeater and a foam launcher, plus turrets that shoot with you, drinks that change how you play for a while, and helpers that pick up candy. Later on most of what you buy changes how you play, not just the numbers.
Gotcha—using power and capacity early on makes growth super obvious at a glance, and then bringing in launchers, turrets, and helpers later actually changes up how you play, which is way clearer than just bumping up stats haha. Our team is also making ISECAI, a free-input AI anime academy RPG, and we're testing whether players can clearly see the impact of their actions. Would you be interested in trying a short, free web opening? If you're down, I'll drop the link and a personal invite code in the comments—no formal review needed.