Very well made! The graphics, animation, and sound are all great -- the game has a lot of polish and looks professional. Actually, I feel like this could do well on a site like Coolmath Games.
Good concept as well for the gameplay. It was exciting to discover different, high-earning items and put them together. I'd love to see a feature where you can review your current items' stats after buying them, since I had trouble figuring out which items to replace. I also found it a bit repetitive to play the same minigames over and over, but since the game is short and sweet, this isn't too big of a deal.
Great job with this game!