That was pretty cool. If I were to make some suggestions:
- I would lower the prices on the beginning upgrades, but lower their effects, essentially making it a longer curve.
- I would also add some kind of upgrade that changes the fruit, which would make the juice worth more money (orange->lemon->apple->etc)
- Maybe have a limit on what the character could carry, then add an upgrade that would increase this.
- The names of the upgrades don't really tell you what they do