Took me a little while to figure out how to play — please add "right click" to the instructions below the game, as everything else is keyboard-based and I didn't realize the mouse was ever needed. Luckily I saw something about it flash by in-game — but I couldn't figure out what was triggering the in-game instructions, what made them go away, or how to make them come back, so I think I missed most of them.
In the shop, it should show you how much money you have. I found it disorienting to have to exit the shop (by moving away) in order to check my balance. Also, there was no feedback when clicking the shop buttons, so it was really hard to tell that it was doing anything.
Is there an ultimate point to the game? I did manage to grow and harvest some crops, earning money which I could use to buy more seeds to grow and harvest more crops... but as all this requires a lot of manual running back and forth, it didn't feel like I was really gaining much in the process.