I hope any of the programmers of the game are reading this one.
The game is nice and very well done, kudos to you. The major problem is the silly highscore system: the more you play, the higher you get in the ranking. Paradoxically, it's not going to help replayability, if that's what you were hoping for, since you have to replay the same level with the same equipment till you're sick of it.
In my opinion, for a clever highscore this is what should count: - the number of days it takes to complete the adventure, so you're going to start it again to get a better result; - the maximum amount of money you can get in a single run.
they could have the enemys on random so every time you play its not the same old thing... this would make it much harder but would encrease the want for replay in my opinoin.