Why would you play an upgrade game? Probably because of the feeling of mastery which comes with the upgrades. So, why would you make the first upgrades cost 100 extremely rare stars. You need like 5 minutes to get the first upgrade.

Nice game. What about upgrades? Buttons should be more clear.

Pretty good. I liked the music as well.

I don't have a problem with it, but the controls are a little... off, as that is the only way to describe it. Laggy, maybe? Also, the game window itself is slightly small. Otherwise, it's an okay game.
I like it.